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Finding the Fourth Proportional to 141,073.52, 194,688.72 and 84,517.68

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Solution

The fourth proportional to 141,073.52, 194,688.72 and 84,517.68 is: 116,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,073.52 : 194,688.72 = 84,517.68 : x
  2. Step 2: Convert to fraction form
    141,073.52/194,688.72 = 84,517.68/x
  3. Step 3: Cross multiply
    141,073.52x = 194,688.72 × 84,517.68
  4. Step 4: Simplify right side
    141,073.52x = 16,454,638,936.57
  5. Step 5: Solve for x
    x = 16,454,638,936.57/141,073.52
  6. Step 6: Final answer
    x = 116,638.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.