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Finding the Fourth Proportional to 132,114.40, 198,301.20 and 65,629.60

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Solution

The fourth proportional to 132,114.40, 198,301.20 and 65,629.60 is: 98,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,114.40 : 198,301.20 = 65,629.60 : x
  2. Step 2: Convert to fraction form
    132,114.40/198,301.20 = 65,629.60/x
  3. Step 3: Cross multiply
    132,114.40x = 198,301.20 × 65,629.60
  4. Step 4: Simplify right side
    132,114.40x = 13,014,428,435.52
  5. Step 5: Solve for x
    x = 13,014,428,435.52/132,114.40
  6. Step 6: Final answer
    x = 98,508.78

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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.