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Finding the Fourth Proportional to 359,771.40, 539,596.44 and 132,019.92

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Solution

The fourth proportional to 359,771.40, 539,596.44 and 132,019.92 is: 198,007.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,771.40 : 539,596.44 = 132,019.92 : x
  2. Step 2: Convert to fraction form
    359,771.40/539,596.44 = 132,019.92/x
  3. Step 3: Cross multiply
    359,771.40x = 539,596.44 × 132,019.92
  4. Step 4: Simplify right side
    359,771.40x = 71,237,478,841.08
  5. Step 5: Solve for x
    x = 71,237,478,841.08/359,771.40
  6. Step 6: Final answer
    x = 198,007.62

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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.