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Finding the Fourth Proportional to 88,460.43, 132,716.53 and 28,487.57

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Solution

The fourth proportional to 88,460.43, 132,716.53 and 28,487.57 is: 42,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,460.43 : 132,716.53 = 28,487.57 : x
  2. Step 2: Convert to fraction form
    88,460.43/132,716.53 = 28,487.57/x
  3. Step 3: Cross multiply
    88,460.43x = 132,716.53 × 28,487.57
  4. Step 4: Simplify right side
    88,460.43x = 3,780,771,770.11
  5. Step 5: Solve for x
    x = 3,780,771,770.11/88,460.43
  6. Step 6: Final answer
    x = 42,739.70

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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.