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Finding the Fourth Proportional to 359,157.60, 538,304.40 and 148,687.20

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Solution

The fourth proportional to 359,157.60, 538,304.40 and 148,687.20 is: 222,851.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,157.60 : 538,304.40 = 148,687.20 : x
  2. Step 2: Convert to fraction form
    359,157.60/538,304.40 = 148,687.20/x
  3. Step 3: Cross multiply
    359,157.60x = 538,304.40 × 148,687.20
  4. Step 4: Simplify right side
    359,157.60x = 80,038,973,983.68
  5. Step 5: Solve for x
    x = 80,038,973,983.68/359,157.60
  6. Step 6: Final answer
    x = 222,851.96

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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.