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Finding the Fourth Proportional to 74,691.40, 112,037.10 and 71,062.60

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Solution

The fourth proportional to 74,691.40, 112,037.10 and 71,062.60 is: 106,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,691.40 : 112,037.10 = 71,062.60 : x
  2. Step 2: Convert to fraction form
    74,691.40/112,037.10 = 71,062.60/x
  3. Step 3: Cross multiply
    74,691.40x = 112,037.10 × 71,062.60
  4. Step 4: Simplify right side
    74,691.40x = 7,961,647,622.46
  5. Step 5: Solve for x
    x = 7,961,647,622.46/74,691.40
  6. Step 6: Final answer
    x = 106,593.90

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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.