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Finding the Third Proportional to 67,781.81 and 148,861.13

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Solution

The third proportional to 67,781.81 and 148,861.13 is: 326,925.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,781.81 : 148,861.13 = 148,861.13 : x
  2. Step 2: Convert to fraction form
    67,781.81/148,861.13 = 148,861.13/x
  3. Step 3: Cross multiply
    67,781.81x = 148,861.13 × 148,861.13
  4. Step 4: Simplify right side
    67,781.81x = 22,159,634,536.27
  5. Step 5: Solve for x
    x = 22,159,634,536.27/67,781.81
  6. Step 6: Final answer
    x = 326,925.97

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.