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Finding the Fourth Proportional to 99,234, 136,942.92 and 54,522

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Solution

The fourth proportional to 99,234, 136,942.92 and 54,522 is: 75,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,234 : 136,942.92 = 54,522 : x
  2. Step 2: Convert to fraction form
    99,234/136,942.92 = 54,522/x
  3. Step 3: Cross multiply
    99,234x = 136,942.92 × 54,522
  4. Step 4: Simplify right side
    99,234x = 7,466,401,884.24
  5. Step 5: Solve for x
    x = 7,466,401,884.24/99,234
  6. Step 6: Final answer
    x = 75,240.36

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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.