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Finding the Fourth Proportional to 498,908.64, 748,360.80 and 124,930.56

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Solution

The fourth proportional to 498,908.64, 748,360.80 and 124,930.56 is: 187,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,908.64 : 748,360.80 = 124,930.56 : x
  2. Step 2: Convert to fraction form
    498,908.64/748,360.80 = 124,930.56/x
  3. Step 3: Cross multiply
    498,908.64x = 748,360.80 × 124,930.56
  4. Step 4: Simplify right side
    498,908.64x = 93,493,133,826.05
  5. Step 5: Solve for x
    x = 93,493,133,826.05/498,908.64
  6. Step 6: Final answer
    x = 187,395.30

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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.