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Finding the Fourth Proportional to 292,751.31, 439,062.17 and 82,332.75

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Solution

The fourth proportional to 292,751.31, 439,062.17 and 82,332.75 is: 123,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,751.31 : 439,062.17 = 82,332.75 : x
  2. Step 2: Convert to fraction form
    292,751.31/439,062.17 = 82,332.75/x
  3. Step 3: Cross multiply
    292,751.31x = 439,062.17 × 82,332.75
  4. Step 4: Simplify right side
    292,751.31x = 36,149,195,465.40
  5. Step 5: Solve for x
    x = 36,149,195,465.40/292,751.31
  6. Step 6: Final answer
    x = 123,480.90

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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.