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Finding the Fourth Proportional to 498,652.47, 747,978.68 and 124,675.47

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Solution

The fourth proportional to 498,652.47, 747,978.68 and 124,675.47 is: 187,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,652.47 : 747,978.68 = 124,675.47 : x
  2. Step 2: Convert to fraction form
    498,652.47/747,978.68 = 124,675.47/x
  3. Step 3: Cross multiply
    498,652.47x = 747,978.68 × 124,675.47
  4. Step 4: Simplify right side
    498,652.47x = 93,254,592,855.60
  5. Step 5: Solve for x
    x = 93,254,592,855.60/498,652.47
  6. Step 6: Final answer
    x = 187,013.20

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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.