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Finding the Fourth Proportional to 89,625.84, 134,399.84 and 27,281.76

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Solution

The fourth proportional to 89,625.84, 134,399.84 and 27,281.76 is: 40,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,625.84 : 134,399.84 = 27,281.76 : x
  2. Step 2: Convert to fraction form
    89,625.84/134,399.84 = 27,281.76/x
  3. Step 3: Cross multiply
    89,625.84x = 134,399.84 × 27,281.76
  4. Step 4: Simplify right side
    89,625.84x = 3,666,664,178.92
  5. Step 5: Solve for x
    x = 3,666,664,178.92/89,625.84
  6. Step 6: Final answer
    x = 40,910.79

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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.