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Finding the Fourth Proportional to 88,532.55, 132,824.67 and 28,559.70

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Solution

The fourth proportional to 88,532.55, 132,824.67 and 28,559.70 is: 42,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,532.55 : 132,824.67 = 28,559.70 : x
  2. Step 2: Convert to fraction form
    88,532.55/132,824.67 = 28,559.70/x
  3. Step 3: Cross multiply
    88,532.55x = 132,824.67 × 28,559.70
  4. Step 4: Simplify right side
    88,532.55x = 3,793,432,727.80
  5. Step 5: Solve for x
    x = 3,793,432,727.80/88,532.55
  6. Step 6: Final answer
    x = 42,847.89

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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.