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Finding the Third Proportional to 74,522 and 112,745

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Solution

The third proportional to 74,522 and 112,745 is: 170,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,522 : 112,745 = 112,745 : x
  2. Step 2: Convert to fraction form
    74,522/112,745 = 112,745/x
  3. Step 3: Cross multiply
    74,522x = 112,745 × 112,745
  4. Step 4: Simplify right side
    74,522x = 12,711,435,025
  5. Step 5: Solve for x
    x = 12,711,435,025/74,522
  6. Step 6: Final answer
    x = 170,572.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.