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Finding the Fourth Proportional to 108,427.80, 149,626.80 and 60,679.92

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Solution

The fourth proportional to 108,427.80, 149,626.80 and 60,679.92 is: 83,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,427.80 : 149,626.80 = 60,679.92 : x
  2. Step 2: Convert to fraction form
    108,427.80/149,626.80 = 60,679.92/x
  3. Step 3: Cross multiply
    108,427.80x = 149,626.80 × 60,679.92
  4. Step 4: Simplify right side
    108,427.80x = 9,079,342,253.86
  5. Step 5: Solve for x
    x = 9,079,342,253.86/108,427.80
  6. Step 6: Final answer
    x = 83,736.30

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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.