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Finding the Fourth Proportional to 71,648.66, 98,867.28 and 41,429.41

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Solution

The fourth proportional to 71,648.66, 98,867.28 and 41,429.41 is: 57,168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,648.66 : 98,867.28 = 41,429.41 : x
  2. Step 2: Convert to fraction form
    71,648.66/98,867.28 = 41,429.41/x
  3. Step 3: Cross multiply
    71,648.66x = 98,867.28 × 41,429.41
  4. Step 4: Simplify right side
    71,648.66x = 4,096,012,986.90
  5. Step 5: Solve for x
    x = 4,096,012,986.90/71,648.66
  6. Step 6: Final answer
    x = 57,168.03

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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.