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Finding the Third Proportional to 147,421.75 and 220,901.38

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Solution

The third proportional to 147,421.75 and 220,901.38 is: 331,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,421.75 : 220,901.38 = 220,901.38 : x
  2. Step 2: Convert to fraction form
    147,421.75/220,901.38 = 220,901.38/x
  3. Step 3: Cross multiply
    147,421.75x = 220,901.38 × 220,901.38
  4. Step 4: Simplify right side
    147,421.75x = 48,797,417,476.89
  5. Step 5: Solve for x
    x = 48,797,417,476.89/147,421.75
  6. Step 6: Final answer
    x = 331,005.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.