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Finding the Fourth Proportional to 108,471.02, 149,704.94 and 65,452.73

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Solution

The fourth proportional to 108,471.02, 149,704.94 and 65,452.73 is: 90,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,471.02 : 149,704.94 = 65,452.73 : x
  2. Step 2: Convert to fraction form
    108,471.02/149,704.94 = 65,452.73/x
  3. Step 3: Cross multiply
    108,471.02x = 149,704.94 × 65,452.73
  4. Step 4: Simplify right side
    108,471.02x = 9,798,596,432.59
  5. Step 5: Solve for x
    x = 9,798,596,432.59/108,471.02
  6. Step 6: Final answer
    x = 90,333.78

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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.