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Finding the Fourth Proportional to 132,097.20, 198,145.80 and 53,170.80

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Solution

The fourth proportional to 132,097.20, 198,145.80 and 53,170.80 is: 79,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,097.20 : 198,145.80 = 53,170.80 : x
  2. Step 2: Convert to fraction form
    132,097.20/198,145.80 = 53,170.80/x
  3. Step 3: Cross multiply
    132,097.20x = 198,145.80 × 53,170.80
  4. Step 4: Simplify right side
    132,097.20x = 10,535,570,702.64
  5. Step 5: Solve for x
    x = 10,535,570,702.64/132,097.20
  6. Step 6: Final answer
    x = 79,756.20

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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.