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Finding the Third Proportional to 91,746 and 129,199.75

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Solution

The third proportional to 91,746 and 129,199.75 is: 181,943.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,746 : 129,199.75 = 129,199.75 : x
  2. Step 2: Convert to fraction form
    91,746/129,199.75 = 129,199.75/x
  3. Step 3: Cross multiply
    91,746x = 129,199.75 × 129,199.75
  4. Step 4: Simplify right side
    91,746x = 16,692,575,400.06
  5. Step 5: Solve for x
    x = 16,692,575,400.06/91,746
  6. Step 6: Final answer
    x = 181,943.36

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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.