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Finding the Fourth Proportional to 359,613.52, 539,253.42 and 209,896.90

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Solution

The fourth proportional to 359,613.52, 539,253.42 and 209,896.90 is: 314,747.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,613.52 : 539,253.42 = 209,896.90 : x
  2. Step 2: Convert to fraction form
    359,613.52/539,253.42 = 209,896.90/x
  3. Step 3: Cross multiply
    359,613.52x = 539,253.42 × 209,896.90
  4. Step 4: Simplify right side
    359,613.52x = 113,187,621,172.40
  5. Step 5: Solve for x
    x = 113,187,621,172.40/359,613.52
  6. Step 6: Final answer
    x = 314,747.96

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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.