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Finding the Fourth Proportional to 94,169.85, 129,954.48 and 51,731.11

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Solution

The fourth proportional to 94,169.85, 129,954.48 and 51,731.11 is: 71,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,169.85 : 129,954.48 = 51,731.11 : x
  2. Step 2: Convert to fraction form
    94,169.85/129,954.48 = 51,731.11/x
  3. Step 3: Cross multiply
    94,169.85x = 129,954.48 × 51,731.11
  4. Step 4: Simplify right side
    94,169.85x = 6,722,689,241.22
  5. Step 5: Solve for x
    x = 6,722,689,241.22/94,169.85
  6. Step 6: Final answer
    x = 71,388.98

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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.