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Finding the Fourth Proportional to 359,755.47, 539,539.20 and 106,967.90

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Solution

The fourth proportional to 359,755.47, 539,539.20 and 106,967.90 is: 160,423.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,755.47 : 539,539.20 = 106,967.90 : x
  2. Step 2: Convert to fraction form
    359,755.47/539,539.20 = 106,967.90/x
  3. Step 3: Cross multiply
    359,755.47x = 539,539.20 × 106,967.90
  4. Step 4: Simplify right side
    359,755.47x = 57,713,372,493.98
  5. Step 5: Solve for x
    x = 57,713,372,493.98/359,755.47
  6. Step 6: Final answer
    x = 160,423.89

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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.