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Finding the Fourth Proportional to 482,139.68, 723,151.19 and 127,182.29

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Solution

The fourth proportional to 482,139.68, 723,151.19 and 127,182.29 is: 190,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,139.68 : 723,151.19 = 127,182.29 : x
  2. Step 2: Convert to fraction form
    482,139.68/723,151.19 = 127,182.29/x
  3. Step 3: Cross multiply
    482,139.68x = 723,151.19 × 127,182.29
  4. Step 4: Simplify right side
    482,139.68x = 91,972,021,062.62
  5. Step 5: Solve for x
    x = 91,972,021,062.62/482,139.68
  6. Step 6: Final answer
    x = 190,758.04

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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.