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Finding the Fourth Proportional to 247,908.64, 342,116.58 and 134,731.44

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Solution

The fourth proportional to 247,908.64, 342,116.58 and 134,731.44 is: 185,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908.64 : 342,116.58 = 134,731.44 : x
  2. Step 2: Convert to fraction form
    247,908.64/342,116.58 = 134,731.44/x
  3. Step 3: Cross multiply
    247,908.64x = 342,116.58 × 134,731.44
  4. Step 4: Simplify right side
    247,908.64x = 46,093,859,471.28
  5. Step 5: Solve for x
    x = 46,093,859,471.28/247,908.64
  6. Step 6: Final answer
    x = 185,930.83

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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.