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Finding the Fourth Proportional to 91,819.13, 137,751.85 and 44,456.90

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Solution

The fourth proportional to 91,819.13, 137,751.85 and 44,456.90 is: 66,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,819.13 : 137,751.85 = 44,456.90 : x
  2. Step 2: Convert to fraction form
    91,819.13/137,751.85 = 44,456.90/x
  3. Step 3: Cross multiply
    91,819.13x = 137,751.85 × 44,456.90
  4. Step 4: Simplify right side
    91,819.13x = 6,124,020,453.50
  5. Step 5: Solve for x
    x = 6,124,020,453.50/91,819.13
  6. Step 6: Final answer
    x = 66,696.57

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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.