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Finding the Fourth Proportional to 79,751.20, 119,569.20 and 44,701.60

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Solution

The fourth proportional to 79,751.20, 119,569.20 and 44,701.60 is: 67,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,751.20 : 119,569.20 = 44,701.60 : x
  2. Step 2: Convert to fraction form
    79,751.20/119,569.20 = 44,701.60/x
  3. Step 3: Cross multiply
    79,751.20x = 119,569.20 × 44,701.60
  4. Step 4: Simplify right side
    79,751.20x = 5,344,934,550.72
  5. Step 5: Solve for x
    x = 5,344,934,550.72/79,751.20
  6. Step 6: Final answer
    x = 67,020.11

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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.