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Finding the Fourth Proportional to 88,149.60, 132,231.88 and 28,186.64

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Solution

The fourth proportional to 88,149.60, 132,231.88 and 28,186.64 is: 42,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,149.60 : 132,231.88 = 28,186.64 : x
  2. Step 2: Convert to fraction form
    88,149.60/132,231.88 = 28,186.64/x
  3. Step 3: Cross multiply
    88,149.60x = 132,231.88 × 28,186.64
  4. Step 4: Simplify right side
    88,149.60x = 3,727,172,398.08
  5. Step 5: Solve for x
    x = 3,727,172,398.08/88,149.60
  6. Step 6: Final answer
    x = 42,282.35

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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.