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Finding the Third Proportional to 84,990.75 and 125,005.50

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Solution

The third proportional to 84,990.75 and 125,005.50 is: 183,859.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,990.75 : 125,005.50 = 125,005.50 : x
  2. Step 2: Convert to fraction form
    84,990.75/125,005.50 = 125,005.50/x
  3. Step 3: Cross multiply
    84,990.75x = 125,005.50 × 125,005.50
  4. Step 4: Simplify right side
    84,990.75x = 15,626,375,030.25
  5. Step 5: Solve for x
    x = 15,626,375,030.25/84,990.75
  6. Step 6: Final answer
    x = 183,859.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.