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Finding the Fourth Proportional to 135,281.60, 202,922.40 and 132,948.80

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Solution

The fourth proportional to 135,281.60, 202,922.40 and 132,948.80 is: 199,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,281.60 : 202,922.40 = 132,948.80 : x
  2. Step 2: Convert to fraction form
    135,281.60/202,922.40 = 132,948.80/x
  3. Step 3: Cross multiply
    135,281.60x = 202,922.40 × 132,948.80
  4. Step 4: Simplify right side
    135,281.60x = 26,978,289,573.12
  5. Step 5: Solve for x
    x = 26,978,289,573.12/135,281.60
  6. Step 6: Final answer
    x = 199,423.20

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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.