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Finding the Fourth Proportional to 77,371.68, 106,773.24 and 43,837.68

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Solution

The fourth proportional to 77,371.68, 106,773.24 and 43,837.68 is: 60,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,371.68 : 106,773.24 = 43,837.68 : x
  2. Step 2: Convert to fraction form
    77,371.68/106,773.24 = 43,837.68/x
  3. Step 3: Cross multiply
    77,371.68x = 106,773.24 × 43,837.68
  4. Step 4: Simplify right side
    77,371.68x = 4,680,691,127.68
  5. Step 5: Solve for x
    x = 4,680,691,127.68/77,371.68
  6. Step 6: Final answer
    x = 60,496.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.