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Finding the Fourth Proportional to 40,833.78, 61,168.02 and 37,431.78

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Solution

The fourth proportional to 40,833.78, 61,168.02 and 37,431.78 is: 56,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,833.78 : 61,168.02 = 37,431.78 : x
  2. Step 2: Convert to fraction form
    40,833.78/61,168.02 = 37,431.78/x
  3. Step 3: Cross multiply
    40,833.78x = 61,168.02 × 37,431.78
  4. Step 4: Simplify right side
    40,833.78x = 2,289,627,867.68
  5. Step 5: Solve for x
    x = 2,289,627,867.68/40,833.78
  6. Step 6: Final answer
    x = 56,071.91

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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.