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Finding the Fourth Proportional to 359,165.19, 538,750.48 and 159,431.88

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Solution

The fourth proportional to 359,165.19, 538,750.48 and 159,431.88 is: 239,149.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,165.19 : 538,750.48 = 159,431.88 : x
  2. Step 2: Convert to fraction form
    359,165.19/538,750.48 = 159,431.88/x
  3. Step 3: Cross multiply
    359,165.19x = 538,750.48 × 159,431.88
  4. Step 4: Simplify right side
    359,165.19x = 85,894,001,877.30
  5. Step 5: Solve for x
    x = 85,894,001,877.30/359,165.19
  6. Step 6: Final answer
    x = 239,149.02

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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.