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Finding the Fourth Proportional to 498,726.76, 748,085.02 and 124,749.80

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Solution

The fourth proportional to 498,726.76, 748,085.02 and 124,749.80 is: 187,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,726.76 : 748,085.02 = 124,749.80 : x
  2. Step 2: Convert to fraction form
    498,726.76/748,085.02 = 124,749.80/x
  3. Step 3: Cross multiply
    498,726.76x = 748,085.02 × 124,749.80
  4. Step 4: Simplify right side
    498,726.76x = 93,323,456,628.00
  5. Step 5: Solve for x
    x = 93,323,456,628.00/498,726.76
  6. Step 6: Final answer
    x = 187,123.42

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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.