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Finding the Third Proportional to 78,844 and 115,332

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Solution

The third proportional to 78,844 and 115,332 is: 168,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,844 : 115,332 = 115,332 : x
  2. Step 2: Convert to fraction form
    78,844/115,332 = 115,332/x
  3. Step 3: Cross multiply
    78,844x = 115,332 × 115,332
  4. Step 4: Simplify right side
    78,844x = 13,301,470,224
  5. Step 5: Solve for x
    x = 13,301,470,224/78,844
  6. Step 6: Final answer
    x = 168,706.18

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.