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Finding the Fourth Proportional to 498,800.80, 748,201.20 and 124,823.20

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Solution

The fourth proportional to 498,800.80, 748,201.20 and 124,823.20 is: 187,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,800.80 : 748,201.20 = 124,823.20 : x
  2. Step 2: Convert to fraction form
    498,800.80/748,201.20 = 124,823.20/x
  3. Step 3: Cross multiply
    498,800.80x = 748,201.20 × 124,823.20
  4. Step 4: Simplify right side
    498,800.80x = 93,392,868,027.84
  5. Step 5: Solve for x
    x = 93,392,868,027.84/498,800.80
  6. Step 6: Final answer
    x = 187,234.80

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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.