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Finding the Fourth Proportional to 111,500.80, 167,024.40 and 69,251.20

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Solution

The fourth proportional to 111,500.80, 167,024.40 and 69,251.20 is: 103,735.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,500.80 : 167,024.40 = 69,251.20 : x
  2. Step 2: Convert to fraction form
    111,500.80/167,024.40 = 69,251.20/x
  3. Step 3: Cross multiply
    111,500.80x = 167,024.40 × 69,251.20
  4. Step 4: Simplify right side
    111,500.80x = 11,566,640,129.28
  5. Step 5: Solve for x
    x = 11,566,640,129.28/111,500.80
  6. Step 6: Final answer
    x = 103,735.94

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1.5x scale

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.