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Finding the Fourth Proportional to 132,452.80, 198,525.60 and 53,515.20

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Solution

The fourth proportional to 132,452.80, 198,525.60 and 53,515.20 is: 80,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,452.80 : 198,525.60 = 53,515.20 : x
  2. Step 2: Convert to fraction form
    132,452.80/198,525.60 = 53,515.20/x
  3. Step 3: Cross multiply
    132,452.80x = 198,525.60 × 53,515.20
  4. Step 4: Simplify right side
    132,452.80x = 10,624,137,189.12
  5. Step 5: Solve for x
    x = 10,624,137,189.12/132,452.80
  6. Step 6: Final answer
    x = 80,210.74

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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.