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Finding the Fourth Proportional to 361,607.20, 542,410.80 and 124,928.80

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Solution

The fourth proportional to 361,607.20, 542,410.80 and 124,928.80 is: 187,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,607.20 : 542,410.80 = 124,928.80 : x
  2. Step 2: Convert to fraction form
    361,607.20/542,410.80 = 124,928.80/x
  3. Step 3: Cross multiply
    361,607.20x = 542,410.80 × 124,928.80
  4. Step 4: Simplify right side
    361,607.20x = 67,762,730,351.04
  5. Step 5: Solve for x
    x = 67,762,730,351.04/361,607.20
  6. Step 6: Final answer
    x = 187,393.20

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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.