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Finding the Fourth Proportional to 109,045.76, 163,591.68 and 35,168

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Solution

The fourth proportional to 109,045.76, 163,591.68 and 35,168 is: 52,759.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,045.76 : 163,591.68 = 35,168 : x
  2. Step 2: Convert to fraction form
    109,045.76/163,591.68 = 35,168/x
  3. Step 3: Cross multiply
    109,045.76x = 163,591.68 × 35,168
  4. Step 4: Simplify right side
    109,045.76x = 5,753,192,202.24
  5. Step 5: Solve for x
    x = 5,753,192,202.24/109,045.76
  6. Step 6: Final answer
    x = 52,759.43

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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.