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Finding the Fourth Proportional to 389,805.92, 584,708.90 and 94,317.92

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Solution

The fourth proportional to 389,805.92, 584,708.90 and 94,317.92 is: 141,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,805.92 : 584,708.90 = 94,317.92 : x
  2. Step 2: Convert to fraction form
    389,805.92/584,708.90 = 94,317.92/x
  3. Step 3: Cross multiply
    389,805.92x = 584,708.90 × 94,317.92
  4. Step 4: Simplify right side
    389,805.92x = 55,148,527,253.49
  5. Step 5: Solve for x
    x = 55,148,527,253.49/389,805.92
  6. Step 6: Final answer
    x = 141,476.88

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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.