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Finding the Third Proportional to 110,687.63 and 155,319.19

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Solution

The third proportional to 110,687.63 and 155,319.19 is: 217,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,687.63 : 155,319.19 = 155,319.19 : x
  2. Step 2: Convert to fraction form
    110,687.63/155,319.19 = 155,319.19/x
  3. Step 3: Cross multiply
    110,687.63x = 155,319.19 × 155,319.19
  4. Step 4: Simplify right side
    110,687.63x = 24,124,050,005.66
  5. Step 5: Solve for x
    x = 24,124,050,005.66/110,687.63
  6. Step 6: Final answer
    x = 217,947.13

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.