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Finding the Fourth Proportional to 359,427.60, 539,049.10 and 106,648.30

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Solution

The fourth proportional to 359,427.60, 539,049.10 and 106,648.30 is: 159,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,427.60 : 539,049.10 = 106,648.30 : x
  2. Step 2: Convert to fraction form
    359,427.60/539,049.10 = 106,648.30/x
  3. Step 3: Cross multiply
    359,427.60x = 539,049.10 × 106,648.30
  4. Step 4: Simplify right side
    359,427.60x = 57,488,668,006.48
  5. Step 5: Solve for x
    x = 57,488,668,006.48/359,427.60
  6. Step 6: Final answer
    x = 159,945.06

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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.