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Finding the Fourth Proportional to 359,839.90, 539,500.65 and 202,116.70

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Solution

The fourth proportional to 359,839.90, 539,500.65 and 202,116.70 is: 303,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,839.90 : 539,500.65 = 202,116.70 : x
  2. Step 2: Convert to fraction form
    359,839.90/539,500.65 = 202,116.70/x
  3. Step 3: Cross multiply
    359,839.90x = 539,500.65 × 202,116.70
  4. Step 4: Simplify right side
    359,839.90x = 109,042,091,025.86
  5. Step 5: Solve for x
    x = 109,042,091,025.86/359,839.90
  6. Step 6: Final answer
    x = 303,029.46

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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.