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Finding the Fourth Proportional to 141,609.85, 212,352.44 and 75,034.62

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Solution

The fourth proportional to 141,609.85, 212,352.44 and 75,034.62 is: 112,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,609.85 : 212,352.44 = 75,034.62 : x
  2. Step 2: Convert to fraction form
    141,609.85/212,352.44 = 75,034.62/x
  3. Step 3: Cross multiply
    141,609.85x = 212,352.44 × 75,034.62
  4. Step 4: Simplify right side
    141,609.85x = 15,933,784,266.30
  5. Step 5: Solve for x
    x = 15,933,784,266.30/141,609.85
  6. Step 6: Final answer
    x = 112,518.90

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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.