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Finding the Third Proportional to 77,711.81 and 116,856.19

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Solution

The third proportional to 77,711.81 and 116,856.19 is: 175,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,711.81 : 116,856.19 = 116,856.19 : x
  2. Step 2: Convert to fraction form
    77,711.81/116,856.19 = 116,856.19/x
  3. Step 3: Cross multiply
    77,711.81x = 116,856.19 × 116,856.19
  4. Step 4: Simplify right side
    77,711.81x = 13,655,368,557.04
  5. Step 5: Solve for x
    x = 13,655,368,557.04/77,711.81
  6. Step 6: Final answer
    x = 175,718.06

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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.