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Finding the Fourth Proportional to 132,017.40, 198,055.26 and 65,493.72

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Solution

The fourth proportional to 132,017.40, 198,055.26 and 65,493.72 is: 98,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,017.40 : 198,055.26 = 65,493.72 : x
  2. Step 2: Convert to fraction form
    132,017.40/198,055.26 = 65,493.72/x
  3. Step 3: Cross multiply
    132,017.40x = 198,055.26 × 65,493.72
  4. Step 4: Simplify right side
    132,017.40x = 12,971,375,742.97
  5. Step 5: Solve for x
    x = 12,971,375,742.97/132,017.40
  6. Step 6: Final answer
    x = 98,255.05

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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.