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Finding the Fourth Proportional to 625,382.07, 938,060.15 and 152,069.91

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Solution

The fourth proportional to 625,382.07, 938,060.15 and 152,069.91 is: 228,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,382.07 : 938,060.15 = 152,069.91 : x
  2. Step 2: Convert to fraction form
    625,382.07/938,060.15 = 152,069.91/x
  3. Step 3: Cross multiply
    625,382.07x = 938,060.15 × 152,069.91
  4. Step 4: Simplify right side
    625,382.07x = 142,650,721,824.74
  5. Step 5: Solve for x
    x = 142,650,721,824.74/625,382.07
  6. Step 6: Final answer
    x = 228,101.71

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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.