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Finding the Fourth Proportional to 88,049.76, 132,069.76 and 64,381.56

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Solution

The fourth proportional to 88,049.76, 132,069.76 and 64,381.56 is: 96,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,049.76 : 132,069.76 = 64,381.56 : x
  2. Step 2: Convert to fraction form
    88,049.76/132,069.76 = 64,381.56/x
  3. Step 3: Cross multiply
    88,049.76x = 132,069.76 × 64,381.56
  4. Step 4: Simplify right side
    88,049.76x = 8,502,857,177.63
  5. Step 5: Solve for x
    x = 8,502,857,177.63/88,049.76
  6. Step 6: Final answer
    x = 96,568.77

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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.