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Finding the Fourth Proportional to 361,379.84, 542,061.92 and 124,714.56

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Solution

The fourth proportional to 361,379.84, 542,061.92 and 124,714.56 is: 187,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,379.84 : 542,061.92 = 124,714.56 : x
  2. Step 2: Convert to fraction form
    361,379.84/542,061.92 = 124,714.56/x
  3. Step 3: Cross multiply
    361,379.84x = 542,061.92 × 124,714.56
  4. Step 4: Simplify right side
    361,379.84x = 67,603,013,845.56
  5. Step 5: Solve for x
    x = 67,603,013,845.56/361,379.84
  6. Step 6: Final answer
    x = 187,069.13

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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.