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Finding the Fourth Proportional to 114,657.20, 171,694.20 and 109,408.40

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Solution

The fourth proportional to 114,657.20, 171,694.20 and 109,408.40 is: 163,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,657.20 : 171,694.20 = 109,408.40 : x
  2. Step 2: Convert to fraction form
    114,657.20/171,694.20 = 109,408.40/x
  3. Step 3: Cross multiply
    114,657.20x = 171,694.20 × 109,408.40
  4. Step 4: Simplify right side
    114,657.20x = 18,784,787,711.28
  5. Step 5: Solve for x
    x = 18,784,787,711.28/114,657.20
  6. Step 6: Final answer
    x = 163,834.35

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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.