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Finding the Fourth Proportional to 292,750.56, 439,061.04 and 82,332

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Solution

The fourth proportional to 292,750.56, 439,061.04 and 82,332 is: 123,479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,750.56 : 439,061.04 = 82,332 : x
  2. Step 2: Convert to fraction form
    292,750.56/439,061.04 = 82,332/x
  3. Step 3: Cross multiply
    292,750.56x = 439,061.04 × 82,332
  4. Step 4: Simplify right side
    292,750.56x = 36,148,773,545.28
  5. Step 5: Solve for x
    x = 36,148,773,545.28/292,750.56
  6. Step 6: Final answer
    x = 123,479.78

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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.