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Finding the Fourth Proportional to 359,423.55, 539,078.09 and 119,517.48

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Solution

The fourth proportional to 359,423.55, 539,078.09 and 119,517.48 is: 179,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,423.55 : 539,078.09 = 119,517.48 : x
  2. Step 2: Convert to fraction form
    359,423.55/539,078.09 = 119,517.48/x
  3. Step 3: Cross multiply
    359,423.55x = 539,078.09 × 119,517.48
  4. Step 4: Simplify right side
    359,423.55x = 64,429,254,242.43
  5. Step 5: Solve for x
    x = 64,429,254,242.43/359,423.55
  6. Step 6: Final answer
    x = 179,257.19

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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.