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Finding the Third Proportional to 86,045 and 126,534.50

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Solution

The third proportional to 86,045 and 126,534.50 is: 186,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,045 : 126,534.50 = 126,534.50 : x
  2. Step 2: Convert to fraction form
    86,045/126,534.50 = 126,534.50/x
  3. Step 3: Cross multiply
    86,045x = 126,534.50 × 126,534.50
  4. Step 4: Simplify right side
    86,045x = 16,010,979,690.25
  5. Step 5: Solve for x
    x = 16,010,979,690.25/86,045
  6. Step 6: Final answer
    x = 186,076.82

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.