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Finding the Fourth Proportional to 359,719.80, 539,453.02 and 119,768.55

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Solution

The fourth proportional to 359,719.80, 539,453.02 and 119,768.55 is: 179,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,719.80 : 539,453.02 = 119,768.55 : x
  2. Step 2: Convert to fraction form
    359,719.80/539,453.02 = 119,768.55/x
  3. Step 3: Cross multiply
    359,719.80x = 539,453.02 × 119,768.55
  4. Step 4: Simplify right side
    359,719.80x = 64,609,505,998.52
  5. Step 5: Solve for x
    x = 64,609,505,998.52/359,719.80
  6. Step 6: Final answer
    x = 179,610.65

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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.