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Finding the Third Proportional to 75,988.13 and 111,091.50

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Solution

The third proportional to 75,988.13 and 111,091.50 is: 162,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,988.13 : 111,091.50 = 111,091.50 : x
  2. Step 2: Convert to fraction form
    75,988.13/111,091.50 = 111,091.50/x
  3. Step 3: Cross multiply
    75,988.13x = 111,091.50 × 111,091.50
  4. Step 4: Simplify right side
    75,988.13x = 12,341,321,372.25
  5. Step 5: Solve for x
    x = 12,341,321,372.25/75,988.13
  6. Step 6: Final answer
    x = 162,411.18

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.