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Finding the Fourth Proportional to 181,757.70, 272,617.14 and 63,431.28

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Solution

The fourth proportional to 181,757.70, 272,617.14 and 63,431.28 is: 95,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,757.70 : 272,617.14 = 63,431.28 : x
  2. Step 2: Convert to fraction form
    181,757.70/272,617.14 = 63,431.28/x
  3. Step 3: Cross multiply
    181,757.70x = 272,617.14 × 63,431.28
  4. Step 4: Simplify right side
    181,757.70x = 17,292,454,140.14
  5. Step 5: Solve for x
    x = 17,292,454,140.14/181,757.70
  6. Step 6: Final answer
    x = 95,140.15

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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.