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Finding the Fourth Proportional to 108,375.76, 149,558.60 and 60,629.12

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Solution

The fourth proportional to 108,375.76, 149,558.60 and 60,629.12 is: 83,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,375.76 : 149,558.60 = 60,629.12 : x
  2. Step 2: Convert to fraction form
    108,375.76/149,558.60 = 60,629.12/x
  3. Step 3: Cross multiply
    108,375.76x = 149,558.60 × 60,629.12
  4. Step 4: Simplify right side
    108,375.76x = 9,067,606,306.43
  5. Step 5: Solve for x
    x = 9,067,606,306.43/108,375.76
  6. Step 6: Final answer
    x = 83,668.21

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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.