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Finding the Third Proportional to 84,534 and 126,535.50

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Solution

The third proportional to 84,534 and 126,535.50 is: 189,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,534 : 126,535.50 = 126,535.50 : x
  2. Step 2: Convert to fraction form
    84,534/126,535.50 = 126,535.50/x
  3. Step 3: Cross multiply
    84,534x = 126,535.50 × 126,535.50
  4. Step 4: Simplify right side
    84,534x = 16,011,232,760.25
  5. Step 5: Solve for x
    x = 16,011,232,760.25/84,534
  6. Step 6: Final answer
    x = 189,405.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.