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Finding the Fourth Proportional to 117,084.62, 175,626.92 and 28,338.12

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Solution

The fourth proportional to 117,084.62, 175,626.92 and 28,338.12 is: 42,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,084.62 : 175,626.92 = 28,338.12 : x
  2. Step 2: Convert to fraction form
    117,084.62/175,626.92 = 28,338.12/x
  3. Step 3: Cross multiply
    117,084.62x = 175,626.92 × 28,338.12
  4. Step 4: Simplify right side
    117,084.62x = 4,976,936,734.19
  5. Step 5: Solve for x
    x = 4,976,936,734.19/117,084.62
  6. Step 6: Final answer
    x = 42,507.18

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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.