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Finding the Fourth Proportional to 89,476.80, 134,220.72 and 36,868.56

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Solution

The fourth proportional to 89,476.80, 134,220.72 and 36,868.56 is: 55,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,476.80 : 134,220.72 = 36,868.56 : x
  2. Step 2: Convert to fraction form
    89,476.80/134,220.72 = 36,868.56/x
  3. Step 3: Cross multiply
    89,476.80x = 134,220.72 × 36,868.56
  4. Step 4: Simplify right side
    89,476.80x = 4,948,524,668.56
  5. Step 5: Solve for x
    x = 4,948,524,668.56/89,476.80
  6. Step 6: Final answer
    x = 55,305.11

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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.