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Finding the Fourth Proportional to 87,596.71, 120,883.58 and 49,870.96

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Solution

The fourth proportional to 87,596.71, 120,883.58 and 49,870.96 is: 68,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,596.71 : 120,883.58 = 49,870.96 : x
  2. Step 2: Convert to fraction form
    87,596.71/120,883.58 = 49,870.96/x
  3. Step 3: Cross multiply
    87,596.71x = 120,883.58 × 49,870.96
  4. Step 4: Simplify right side
    87,596.71x = 6,028,580,182.84
  5. Step 5: Solve for x
    x = 6,028,580,182.84/87,596.71
  6. Step 6: Final answer
    x = 68,821.99

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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.