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Finding the Fourth Proportional to 498,649.82, 747,974.72 and 124,672.82

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Solution

The fourth proportional to 498,649.82, 747,974.72 and 124,672.82 is: 187,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,649.82 : 747,974.72 = 124,672.82 : x
  2. Step 2: Convert to fraction form
    498,649.82/747,974.72 = 124,672.82/x
  3. Step 3: Cross multiply
    498,649.82x = 747,974.72 × 124,672.82
  4. Step 4: Simplify right side
    498,649.82x = 93,252,113,891.24
  5. Step 5: Solve for x
    x = 93,252,113,891.24/498,649.82
  6. Step 6: Final answer
    x = 187,009.22

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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.