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Finding the Fourth Proportional to 498,906.30, 748,359.45 and 124,929.30

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Solution

The fourth proportional to 498,906.30, 748,359.45 and 124,929.30 is: 187,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,906.30 : 748,359.45 = 124,929.30 : x
  2. Step 2: Convert to fraction form
    498,906.30/748,359.45 = 124,929.30/x
  3. Step 3: Cross multiply
    498,906.30x = 748,359.45 × 124,929.30
  4. Step 4: Simplify right side
    498,906.30x = 93,492,022,236.89
  5. Step 5: Solve for x
    x = 93,492,022,236.89/498,906.30
  6. Step 6: Final answer
    x = 187,393.95

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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.