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Finding the Fourth Proportional to 91,864,701,138.45, 137,797,051,707.67 and 91,864,701,138.45

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Solution

The fourth proportional to 91,864,701,138.45, 137,797,051,707.67 and 91,864,701,138.45 is: 137,797,051,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864,701,138.45 : 137,797,051,707.67 = 91,864,701,138.45 : x
  2. Step 2: Convert to fraction form
    91,864,701,138.45/137,797,051,707.67 = 91,864,701,138.45/x
  3. Step 3: Cross multiply
    91,864,701,138.45x = 137,797,051,707.67 × 91,864,701,138.45
  4. Step 4: Simplify right side
    91,864,701,138.45x = 12,658,684,972,884,645,904,384
  5. Step 5: Solve for x
    x = 12,658,684,972,884,645,904,384/91,864,701,138.45
  6. Step 6: Final answer
    x = 137,797,051,707.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.