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Finding the Fourth Proportional to 152,981.90, 211,119.72 and 92,563.64

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Solution

The fourth proportional to 152,981.90, 211,119.72 and 92,563.64 is: 127,740.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,981.90 : 211,119.72 = 92,563.64 : x
  2. Step 2: Convert to fraction form
    152,981.90/211,119.72 = 92,563.64/x
  3. Step 3: Cross multiply
    152,981.90x = 211,119.72 × 92,563.64
  4. Step 4: Simplify right side
    152,981.90x = 19,542,009,758.98
  5. Step 5: Solve for x
    x = 19,542,009,758.98/152,981.90
  6. Step 6: Final answer
    x = 127,740.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.