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Finding the Fourth Proportional to 498,649.07, 747,973.60 and 124,672.07

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Solution

The fourth proportional to 498,649.07, 747,973.60 and 124,672.07 is: 187,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,649.07 : 747,973.60 = 124,672.07 : x
  2. Step 2: Convert to fraction form
    498,649.07/747,973.60 = 124,672.07/x
  3. Step 3: Cross multiply
    498,649.07x = 747,973.60 × 124,672.07
  4. Step 4: Simplify right side
    498,649.07x = 93,251,412,654.12
  5. Step 5: Solve for x
    x = 93,251,412,654.12/498,649.07
  6. Step 6: Final answer
    x = 187,008.10

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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.