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Finding the Fourth Proportional to 361,291.12, 541,737.60 and 124,438.48

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Solution

The fourth proportional to 361,291.12, 541,737.60 and 124,438.48 is: 186,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,291.12 : 541,737.60 = 124,438.48 : x
  2. Step 2: Convert to fraction form
    361,291.12/541,737.60 = 124,438.48/x
  3. Step 3: Cross multiply
    361,291.12x = 541,737.60 × 124,438.48
  4. Step 4: Simplify right side
    361,291.12x = 67,413,003,502.85
  5. Step 5: Solve for x
    x = 67,413,003,502.85/361,291.12
  6. Step 6: Final answer
    x = 186,589.15

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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.