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Finding the Fourth Proportional to 270,444.46, 405,689.77 and 70,764.67

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Solution

The fourth proportional to 270,444.46, 405,689.77 and 70,764.67 is: 106,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,444.46 : 405,689.77 = 70,764.67 : x
  2. Step 2: Convert to fraction form
    270,444.46/405,689.77 = 70,764.67/x
  3. Step 3: Cross multiply
    270,444.46x = 405,689.77 × 70,764.67
  4. Step 4: Simplify right side
    270,444.46x = 28,708,502,696.43
  5. Step 5: Solve for x
    x = 28,708,502,696.43/270,444.46
  6. Step 6: Final answer
    x = 106,153.04

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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.