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Finding the Third Proportional to 105,712 and 163,792

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Solution

The third proportional to 105,712 and 163,792 is: 253,782.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,712 : 163,792 = 163,792 : x
  2. Step 2: Convert to fraction form
    105,712/163,792 = 163,792/x
  3. Step 3: Cross multiply
    105,712x = 163,792 × 163,792
  4. Step 4: Simplify right side
    105,712x = 26,827,819,264
  5. Step 5: Solve for x
    x = 26,827,819,264/105,712
  6. Step 6: Final answer
    x = 253,782.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.