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Finding the Fourth Proportional to 89,949.93, 134,809.47 and 76,073.82

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Solution

The fourth proportional to 89,949.93, 134,809.47 and 76,073.82 is: 114,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,949.93 : 134,809.47 = 76,073.82 : x
  2. Step 2: Convert to fraction form
    89,949.93/134,809.47 = 76,073.82/x
  3. Step 3: Cross multiply
    89,949.93x = 134,809.47 × 76,073.82
  4. Step 4: Simplify right side
    89,949.93x = 10,255,471,355.08
  5. Step 5: Solve for x
    x = 10,255,471,355.08/89,949.93
  6. Step 6: Final answer
    x = 114,013.11

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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.