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Finding the Fourth Proportional to 75,489.84, 113,228.15 and 25,568.87

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Solution

The fourth proportional to 75,489.84, 113,228.15 and 25,568.87 is: 38,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,489.84 : 113,228.15 = 25,568.87 : x
  2. Step 2: Convert to fraction form
    75,489.84/113,228.15 = 25,568.87/x
  3. Step 3: Cross multiply
    75,489.84x = 113,228.15 × 25,568.87
  4. Step 4: Simplify right side
    75,489.84x = 2,895,115,153.71
  5. Step 5: Solve for x
    x = 2,895,115,153.71/75,489.84
  6. Step 6: Final answer
    x = 38,351.06

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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.