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Finding the Third Proportional to 74,411 and 112,287

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Solution

The third proportional to 74,411 and 112,287 is: 169,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,411 : 112,287 = 112,287 : x
  2. Step 2: Convert to fraction form
    74,411/112,287 = 112,287/x
  3. Step 3: Cross multiply
    74,411x = 112,287 × 112,287
  4. Step 4: Simplify right side
    74,411x = 12,608,370,369
  5. Step 5: Solve for x
    x = 12,608,370,369/74,411
  6. Step 6: Final answer
    x = 169,442.29

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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.