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Finding the Fourth Proportional to 361,337.90, 542,043.77 and 124,679.93

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Solution

The fourth proportional to 361,337.90, 542,043.77 and 124,679.93 is: 187,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,337.90 : 542,043.77 = 124,679.93 : x
  2. Step 2: Convert to fraction form
    361,337.90/542,043.77 = 124,679.93/x
  3. Step 3: Cross multiply
    361,337.90x = 542,043.77 × 124,679.93
  4. Step 4: Simplify right side
    361,337.90x = 67,581,975,966.92
  5. Step 5: Solve for x
    x = 67,581,975,966.92/361,337.90
  6. Step 6: Final answer
    x = 187,032.63

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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.