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Finding the Fourth Proportional to 317,576.68, 476,002.65 and 127,915.65

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Solution

The fourth proportional to 317,576.68, 476,002.65 and 127,915.65 is: 191,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,576.68 : 476,002.65 = 127,915.65 : x
  2. Step 2: Convert to fraction form
    317,576.68/476,002.65 = 127,915.65/x
  3. Step 3: Cross multiply
    317,576.68x = 476,002.65 × 127,915.65
  4. Step 4: Simplify right side
    317,576.68x = 60,888,188,926.90
  5. Step 5: Solve for x
    x = 60,888,188,926.90/317,576.68
  6. Step 6: Final answer
    x = 191,727.52

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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.