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Finding the Fourth Proportional to 482,856.90, 724,285.35 and 127,906.80

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Solution

The fourth proportional to 482,856.90, 724,285.35 and 127,906.80 is: 191,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,856.90 : 724,285.35 = 127,906.80 : x
  2. Step 2: Convert to fraction form
    482,856.90/724,285.35 = 127,906.80/x
  3. Step 3: Cross multiply
    482,856.90x = 724,285.35 × 127,906.80
  4. Step 4: Simplify right side
    482,856.90x = 92,641,021,405.38
  5. Step 5: Solve for x
    x = 92,641,021,405.38/482,856.90
  6. Step 6: Final answer
    x = 191,860.20

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Similar ratio
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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.