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Finding the Fourth Proportional to 482,951.30, 724,394.55 and 127,957.70

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Solution

The fourth proportional to 482,951.30, 724,394.55 and 127,957.70 is: 191,927.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,951.30 : 724,394.55 = 127,957.70 : x
  2. Step 2: Convert to fraction form
    482,951.30/724,394.55 = 127,957.70/x
  3. Step 3: Cross multiply
    482,951.30x = 724,394.55 × 127,957.70
  4. Step 4: Simplify right side
    482,951.30x = 92,691,860,510.54
  5. Step 5: Solve for x
    x = 92,691,860,510.54/482,951.30
  6. Step 6: Final answer
    x = 191,927.97

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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.