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Finding the Third Proportional to 112,312 and 169,637

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Solution

The third proportional to 112,312 and 169,637 is: 256,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,312 : 169,637 = 169,637 : x
  2. Step 2: Convert to fraction form
    112,312/169,637 = 169,637/x
  3. Step 3: Cross multiply
    112,312x = 169,637 × 169,637
  4. Step 4: Simplify right side
    112,312x = 28,776,711,769
  5. Step 5: Solve for x
    x = 28,776,711,769/112,312
  6. Step 6: Final answer
    x = 256,221.17

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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.