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Finding the Fourth Proportional to 61,354.46, 91,990.69 and 49,522.79

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Solution

The fourth proportional to 61,354.46, 91,990.69 and 49,522.79 is: 74,251.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,354.46 : 91,990.69 = 49,522.79 : x
  2. Step 2: Convert to fraction form
    61,354.46/91,990.69 = 49,522.79/x
  3. Step 3: Cross multiply
    61,354.46x = 91,990.69 × 49,522.79
  4. Step 4: Simplify right side
    61,354.46x = 4,555,635,728.99
  5. Step 5: Solve for x
    x = 4,555,635,728.99/61,354.46
  6. Step 6: Final answer
    x = 74,251.09

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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.