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Finding the Fourth Proportional to 360,062.76, 539,760.28 and 123,349.20

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Solution

The fourth proportional to 360,062.76, 539,760.28 and 123,349.20 is: 184,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,062.76 : 539,760.28 = 123,349.20 : x
  2. Step 2: Convert to fraction form
    360,062.76/539,760.28 = 123,349.20/x
  3. Step 3: Cross multiply
    360,062.76x = 539,760.28 × 123,349.20
  4. Step 4: Simplify right side
    360,062.76x = 66,578,998,729.78
  5. Step 5: Solve for x
    x = 66,578,998,729.78/360,062.76
  6. Step 6: Final answer
    x = 184,909.43

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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.