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Finding the Third Proportional to 75,786 and 106,177.50

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Solution

The third proportional to 75,786 and 106,177.50 is: 148,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,786 : 106,177.50 = 106,177.50 : x
  2. Step 2: Convert to fraction form
    75,786/106,177.50 = 106,177.50/x
  3. Step 3: Cross multiply
    75,786x = 106,177.50 × 106,177.50
  4. Step 4: Simplify right side
    75,786x = 11,273,661,506.25
  5. Step 5: Solve for x
    x = 11,273,661,506.25/75,786
  6. Step 6: Final answer
    x = 148,756.52

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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.