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Finding the Fourth Proportional to 181,154.25, 250,000.68 and 100,581.78

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Solution

The fourth proportional to 181,154.25, 250,000.68 and 100,581.78 is: 138,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,154.25 : 250,000.68 = 100,581.78 : x
  2. Step 2: Convert to fraction form
    181,154.25/250,000.68 = 100,581.78/x
  3. Step 3: Cross multiply
    181,154.25x = 250,000.68 × 100,581.78
  4. Step 4: Simplify right side
    181,154.25x = 25,145,513,395.61
  5. Step 5: Solve for x
    x = 25,145,513,395.61/181,154.25
  6. Step 6: Final answer
    x = 138,807.20

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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.