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Finding the Fourth Proportional to 87,523.63, 120,783.33 and 49,800.31

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Solution

The fourth proportional to 87,523.63, 120,783.33 and 49,800.31 is: 68,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,523.63 : 120,783.33 = 49,800.31 : x
  2. Step 2: Convert to fraction form
    87,523.63/120,783.33 = 49,800.31/x
  3. Step 3: Cross multiply
    87,523.63x = 120,783.33 × 49,800.31
  4. Step 4: Simplify right side
    87,523.63x = 6,015,046,974.87
  5. Step 5: Solve for x
    x = 6,015,046,974.87/87,523.63
  6. Step 6: Final answer
    x = 68,724.84

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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.