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Finding the Third Proportional to 75,094.50 and 104,987

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Solution

The third proportional to 75,094.50 and 104,987 is: 146,778.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,094.50 : 104,987 = 104,987 : x
  2. Step 2: Convert to fraction form
    75,094.50/104,987 = 104,987/x
  3. Step 3: Cross multiply
    75,094.50x = 104,987 × 104,987
  4. Step 4: Simplify right side
    75,094.50x = 11,022,270,169
  5. Step 5: Solve for x
    x = 11,022,270,169/75,094.50
  6. Step 6: Final answer
    x = 146,778.66

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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.