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Finding the Fourth Proportional to 263,576.79, 363,736.19 and 142,718.14

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Solution

The fourth proportional to 263,576.79, 363,736.19 and 142,718.14 is: 196,951.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,576.79 : 363,736.19 = 142,718.14 : x
  2. Step 2: Convert to fraction form
    263,576.79/363,736.19 = 142,718.14/x
  3. Step 3: Cross multiply
    263,576.79x = 363,736.19 × 142,718.14
  4. Step 4: Simplify right side
    263,576.79x = 51,911,752,487.49
  5. Step 5: Solve for x
    x = 51,911,752,487.49/263,576.79
  6. Step 6: Final answer
    x = 196,951.15

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1.5x scale

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.