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Finding the Fourth Proportional to 112,286.88, 168,430.32 and 33,401.76

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Solution

The fourth proportional to 112,286.88, 168,430.32 and 33,401.76 is: 50,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,286.88 : 168,430.32 = 33,401.76 : x
  2. Step 2: Convert to fraction form
    112,286.88/168,430.32 = 33,401.76/x
  3. Step 3: Cross multiply
    112,286.88x = 168,430.32 × 33,401.76
  4. Step 4: Simplify right side
    112,286.88x = 5,625,869,125.36
  5. Step 5: Solve for x
    x = 5,625,869,125.36/112,286.88
  6. Step 6: Final answer
    x = 50,102.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.