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Finding the Fourth Proportional to 107,981.88, 149,015.96 and 59,585.96

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Solution

The fourth proportional to 107,981.88, 149,015.96 and 59,585.96 is: 82,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,981.88 : 149,015.96 = 59,585.96 : x
  2. Step 2: Convert to fraction form
    107,981.88/149,015.96 = 59,585.96/x
  3. Step 3: Cross multiply
    107,981.88x = 149,015.96 × 59,585.96
  4. Step 4: Simplify right side
    107,981.88x = 8,879,259,031.92
  5. Step 5: Solve for x
    x = 8,879,259,031.92/107,981.88
  6. Step 6: Final answer
    x = 82,229.16

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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.