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Finding the Fourth Proportional to 64,478.32, 88,958.28 and 41,845.66

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Solution

The fourth proportional to 64,478.32, 88,958.28 and 41,845.66 is: 57,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.32 : 88,958.28 = 41,845.66 : x
  2. Step 2: Convert to fraction form
    64,478.32/88,958.28 = 41,845.66/x
  3. Step 3: Cross multiply
    64,478.32x = 88,958.28 × 41,845.66
  4. Step 4: Simplify right side
    64,478.32x = 3,722,517,939.06
  5. Step 5: Solve for x
    x = 3,722,517,939.06/64,478.32
  6. Step 6: Final answer
    x = 57,732.86

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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.