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Finding the Third Proportional to 75,050 and 105,555

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Solution

The third proportional to 75,050 and 105,555 is: 148,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,050 : 105,555 = 105,555 : x
  2. Step 2: Convert to fraction form
    75,050/105,555 = 105,555/x
  3. Step 3: Cross multiply
    75,050x = 105,555 × 105,555
  4. Step 4: Simplify right side
    75,050x = 11,141,858,025
  5. Step 5: Solve for x
    x = 11,141,858,025/75,050
  6. Step 6: Final answer
    x = 148,459.13

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.