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Finding the Third Proportional to 42,864.19 and 92,218.50

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Solution

The third proportional to 42,864.19 and 92,218.50 is: 198,399.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,864.19 : 92,218.50 = 92,218.50 : x
  2. Step 2: Convert to fraction form
    42,864.19/92,218.50 = 92,218.50/x
  3. Step 3: Cross multiply
    42,864.19x = 92,218.50 × 92,218.50
  4. Step 4: Simplify right side
    42,864.19x = 8,504,251,742.25
  5. Step 5: Solve for x
    x = 8,504,251,742.25/42,864.19
  6. Step 6: Final answer
    x = 198,399.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.