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Finding the Fourth Proportional to 361,844.70, 542,820.51 and 125,123.82

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Solution

The fourth proportional to 361,844.70, 542,820.51 and 125,123.82 is: 187,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,844.70 : 542,820.51 = 125,123.82 : x
  2. Step 2: Convert to fraction form
    361,844.70/542,820.51 = 125,123.82/x
  3. Step 3: Cross multiply
    361,844.70x = 542,820.51 × 125,123.82
  4. Step 4: Simplify right side
    361,844.70x = 67,919,775,785.55
  5. Step 5: Solve for x
    x = 67,919,775,785.55/361,844.70
  6. Step 6: Final answer
    x = 187,704.22

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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.