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Finding the Fourth Proportional to 87,607.76, 120,885.48 and 49,365.68

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Solution

The fourth proportional to 87,607.76, 120,885.48 and 49,365.68 is: 68,117.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,607.76 : 120,885.48 = 49,365.68 : x
  2. Step 2: Convert to fraction form
    87,607.76/120,885.48 = 49,365.68/x
  3. Step 3: Cross multiply
    87,607.76x = 120,885.48 × 49,365.68
  4. Step 4: Simplify right side
    87,607.76x = 5,967,593,922.33
  5. Step 5: Solve for x
    x = 5,967,593,922.33/87,607.76
  6. Step 6: Final answer
    x = 68,117.18

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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.