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Finding the Third Proportional to 76,118 and 117,141

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Solution

The third proportional to 76,118 and 117,141 is: 180,272.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,118 : 117,141 = 117,141 : x
  2. Step 2: Convert to fraction form
    76,118/117,141 = 117,141/x
  3. Step 3: Cross multiply
    76,118x = 117,141 × 117,141
  4. Step 4: Simplify right side
    76,118x = 13,722,013,881
  5. Step 5: Solve for x
    x = 13,722,013,881/76,118
  6. Step 6: Final answer
    x = 180,272.92

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.