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Finding the Fourth Proportional to 87,433.44, 120,653.88 and 49,706.88

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Solution

The fourth proportional to 87,433.44, 120,653.88 and 49,706.88 is: 68,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,433.44 : 120,653.88 = 49,706.88 : x
  2. Step 2: Convert to fraction form
    87,433.44/120,653.88 = 49,706.88/x
  3. Step 3: Cross multiply
    87,433.44x = 120,653.88 × 49,706.88
  4. Step 4: Simplify right side
    87,433.44x = 5,997,327,934.69
  5. Step 5: Solve for x
    x = 5,997,327,934.69/87,433.44
  6. Step 6: Final answer
    x = 68,593.07

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1.5x scale

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.