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Finding the Third Proportional to 113,449.50 and 163,431

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Solution

The third proportional to 113,449.50 and 163,431 is: 235,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,449.50 : 163,431 = 163,431 : x
  2. Step 2: Convert to fraction form
    113,449.50/163,431 = 163,431/x
  3. Step 3: Cross multiply
    113,449.50x = 163,431 × 163,431
  4. Step 4: Simplify right side
    113,449.50x = 26,709,691,761
  5. Step 5: Solve for x
    x = 26,709,691,761/113,449.50
  6. Step 6: Final answer
    x = 235,432.43

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.