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Finding the Fourth Proportional to 88,981.87, 133,379.82 and 29,768.83

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Solution

The fourth proportional to 88,981.87, 133,379.82 and 29,768.83 is: 44,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,981.87 : 133,379.82 = 29,768.83 : x
  2. Step 2: Convert to fraction form
    88,981.87/133,379.82 = 29,768.83/x
  3. Step 3: Cross multiply
    88,981.87x = 133,379.82 × 29,768.83
  4. Step 4: Simplify right side
    88,981.87x = 3,970,561,187.01
  5. Step 5: Solve for x
    x = 3,970,561,187.01/88,981.87
  6. Step 6: Final answer
    x = 44,622.14

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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.