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Finding the Third Proportional to 84,132 and 124,989.75

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Solution

The third proportional to 84,132 and 124,989.75 is: 185,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,132 : 124,989.75 = 124,989.75 : x
  2. Step 2: Convert to fraction form
    84,132/124,989.75 = 124,989.75/x
  3. Step 3: Cross multiply
    84,132x = 124,989.75 × 124,989.75
  4. Step 4: Simplify right side
    84,132x = 15,622,437,605.06
  5. Step 5: Solve for x
    x = 15,622,437,605.06/84,132
  6. Step 6: Final answer
    x = 185,689.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.