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Finding the Fourth Proportional to 361,261.20, 542,053.80 and 124,773.60

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Solution

The fourth proportional to 361,261.20, 542,053.80 and 124,773.60 is: 187,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,261.20 : 542,053.80 = 124,773.60 : x
  2. Step 2: Convert to fraction form
    361,261.20/542,053.80 = 124,773.60/x
  3. Step 3: Cross multiply
    361,261.20x = 542,053.80 × 124,773.60
  4. Step 4: Simplify right side
    361,261.20x = 67,634,004,019.68
  5. Step 5: Solve for x
    x = 67,634,004,019.68/361,261.20
  6. Step 6: Final answer
    x = 187,216.35

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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.