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Finding the Fourth Proportional to 73,956.71, 102,060.24 and 40,422.71

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Solution

The fourth proportional to 73,956.71, 102,060.24 and 40,422.71 is: 55,783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,956.71 : 102,060.24 = 40,422.71 : x
  2. Step 2: Convert to fraction form
    73,956.71/102,060.24 = 40,422.71/x
  3. Step 3: Cross multiply
    73,956.71x = 102,060.24 × 40,422.71
  4. Step 4: Simplify right side
    73,956.71x = 4,125,551,484.05
  5. Step 5: Solve for x
    x = 4,125,551,484.05/73,956.71
  6. Step 6: Final answer
    x = 55,783.33

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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.