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Finding the Fourth Proportional to 71,463.89, 107,173.88 and 49,418.93

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Solution

The fourth proportional to 71,463.89, 107,173.88 and 49,418.93 is: 74,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,463.89 : 107,173.88 = 49,418.93 : x
  2. Step 2: Convert to fraction form
    71,463.89/107,173.88 = 49,418.93/x
  3. Step 3: Cross multiply
    71,463.89x = 107,173.88 × 49,418.93
  4. Step 4: Simplify right side
    71,463.89x = 5,296,418,354.84
  5. Step 5: Solve for x
    x = 5,296,418,354.84/71,463.89
  6. Step 6: Final answer
    x = 74,113.21

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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.