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Finding the Fourth Proportional to 132,645.02, 198,701.04 and 65,883.20

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Solution

The fourth proportional to 132,645.02, 198,701.04 and 65,883.20 is: 98,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,645.02 : 198,701.04 = 65,883.20 : x
  2. Step 2: Convert to fraction form
    132,645.02/198,701.04 = 65,883.20/x
  3. Step 3: Cross multiply
    132,645.02x = 198,701.04 × 65,883.20
  4. Step 4: Simplify right side
    132,645.02x = 13,091,060,358.53
  5. Step 5: Solve for x
    x = 13,091,060,358.53/132,645.02
  6. Step 6: Final answer
    x = 98,692.44

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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.