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Finding the Third Proportional to 75,116 and 109,785

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Solution

The third proportional to 75,116 and 109,785 is: 160,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,116 : 109,785 = 109,785 : x
  2. Step 2: Convert to fraction form
    75,116/109,785 = 109,785/x
  3. Step 3: Cross multiply
    75,116x = 109,785 × 109,785
  4. Step 4: Simplify right side
    75,116x = 12,052,746,225
  5. Step 5: Solve for x
    x = 12,052,746,225/75,116
  6. Step 6: Final answer
    x = 160,455.11

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.