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Finding the Fourth Proportional to 87,572.66, 120,856.41 and 49,846.91

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Solution

The fourth proportional to 87,572.66, 120,856.41 and 49,846.91 is: 68,792.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.66 : 120,856.41 = 49,846.91 : x
  2. Step 2: Convert to fraction form
    87,572.66/120,856.41 = 49,846.91/x
  3. Step 3: Cross multiply
    87,572.66x = 120,856.41 × 49,846.91
  4. Step 4: Simplify right side
    87,572.66x = 6,024,317,987.91
  5. Step 5: Solve for x
    x = 6,024,317,987.91/87,572.66
  6. Step 6: Final answer
    x = 68,792.23

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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.