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Finding the Fourth Proportional to 359,338.60, 539,072.70 and 148,997.80

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Solution

The fourth proportional to 359,338.60, 539,072.70 and 148,997.80 is: 223,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,338.60 : 539,072.70 = 148,997.80 : x
  2. Step 2: Convert to fraction form
    359,338.60/539,072.70 = 148,997.80/x
  3. Step 3: Cross multiply
    359,338.60x = 539,072.70 × 148,997.80
  4. Step 4: Simplify right side
    359,338.60x = 80,320,646,340.06
  5. Step 5: Solve for x
    x = 80,320,646,340.06/359,338.60
  6. Step 6: Final answer
    x = 223,523.57

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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.