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Finding the Third Proportional to 75,139.50 and 112,473.75

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Solution

The third proportional to 75,139.50 and 112,473.75 is: 168,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.50 : 112,473.75 = 112,473.75 : x
  2. Step 2: Convert to fraction form
    75,139.50/112,473.75 = 112,473.75/x
  3. Step 3: Cross multiply
    75,139.50x = 112,473.75 × 112,473.75
  4. Step 4: Simplify right side
    75,139.50x = 12,650,344,439.06
  5. Step 5: Solve for x
    x = 12,650,344,439.06/75,139.50
  6. Step 6: Final answer
    x = 168,358.11

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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.