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Finding the Fourth Proportional to 85,223.61, 117,609.17 and 47,500.29

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Solution

The fourth proportional to 85,223.61, 117,609.17 and 47,500.29 is: 65,550.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,223.61 : 117,609.17 = 47,500.29 : x
  2. Step 2: Convert to fraction form
    85,223.61/117,609.17 = 47,500.29/x
  3. Step 3: Cross multiply
    85,223.61x = 117,609.17 × 47,500.29
  4. Step 4: Simplify right side
    85,223.61x = 5,586,469,444.16
  5. Step 5: Solve for x
    x = 5,586,469,444.16/85,223.61
  6. Step 6: Final answer
    x = 65,550.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.