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Finding the Fourth Proportional to 80,868.80, 121,281.60 and 24,708.80

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Solution

The fourth proportional to 80,868.80, 121,281.60 and 24,708.80 is: 37,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,868.80 : 121,281.60 = 24,708.80 : x
  2. Step 2: Convert to fraction form
    80,868.80/121,281.60 = 24,708.80/x
  3. Step 3: Cross multiply
    80,868.80x = 121,281.60 × 24,708.80
  4. Step 4: Simplify right side
    80,868.80x = 2,996,722,798.08
  5. Step 5: Solve for x
    x = 2,996,722,798.08/80,868.80
  6. Step 6: Final answer
    x = 37,056.60

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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.