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Finding the Fourth Proportional to 88,709.30, 133,063.95 and 60,715.70

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Solution

The fourth proportional to 88,709.30, 133,063.95 and 60,715.70 is: 91,073.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709.30 : 133,063.95 = 60,715.70 : x
  2. Step 2: Convert to fraction form
    88,709.30/133,063.95 = 60,715.70/x
  3. Step 3: Cross multiply
    88,709.30x = 133,063.95 × 60,715.70
  4. Step 4: Simplify right side
    88,709.30x = 8,079,070,869.02
  5. Step 5: Solve for x
    x = 8,079,070,869.02/88,709.30
  6. Step 6: Final answer
    x = 91,073.55

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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.