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Finding the Fourth Proportional to 359,229.60, 538,261.20 and 225,871.20

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Solution

The fourth proportional to 359,229.60, 538,261.20 and 225,871.20 is: 338,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,229.60 : 538,261.20 = 225,871.20 : x
  2. Step 2: Convert to fraction form
    359,229.60/538,261.20 = 225,871.20/x
  3. Step 3: Cross multiply
    359,229.60x = 538,261.20 × 225,871.20
  4. Step 4: Simplify right side
    359,229.60x = 121,577,703,157.44
  5. Step 5: Solve for x
    x = 121,577,703,157.44/359,229.60
  6. Step 6: Final answer
    x = 338,440.10

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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.