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Finding the Fourth Proportional to 132,080.88, 198,140.88 and 47,847.36

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Solution

The fourth proportional to 132,080.88, 198,140.88 and 47,847.36 is: 71,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,080.88 : 198,140.88 = 47,847.36 : x
  2. Step 2: Convert to fraction form
    132,080.88/198,140.88 = 47,847.36/x
  3. Step 3: Cross multiply
    132,080.88x = 198,140.88 × 47,847.36
  4. Step 4: Simplify right side
    132,080.88x = 9,480,518,016.08
  5. Step 5: Solve for x
    x = 9,480,518,016.08/132,080.88
  6. Step 6: Final answer
    x = 71,778.13

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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.