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Finding the Fourth Proportional to 60,369.84, 90,385.20 and 49,057.92

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Solution

The fourth proportional to 60,369.84, 90,385.20 and 49,057.92 is: 73,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,369.84 : 90,385.20 = 49,057.92 : x
  2. Step 2: Convert to fraction form
    60,369.84/90,385.20 = 49,057.92/x
  3. Step 3: Cross multiply
    60,369.84x = 90,385.20 × 49,057.92
  4. Step 4: Simplify right side
    60,369.84x = 4,434,109,910.78
  5. Step 5: Solve for x
    x = 4,434,109,910.78/60,369.84
  6. Step 6: Final answer
    x = 73,449.09

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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.