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Finding the Fourth Proportional to 60,321.78, 83,231.64 and 33,458.52

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Solution

The fourth proportional to 60,321.78, 83,231.64 and 33,458.52 is: 46,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,321.78 : 83,231.64 = 33,458.52 : x
  2. Step 2: Convert to fraction form
    60,321.78/83,231.64 = 33,458.52/x
  3. Step 3: Cross multiply
    60,321.78x = 83,231.64 × 33,458.52
  4. Step 4: Simplify right side
    60,321.78x = 2,784,807,491.57
  5. Step 5: Solve for x
    x = 2,784,807,491.57/60,321.78
  6. Step 6: Final answer
    x = 46,165.87

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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.