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Finding the Fourth Proportional to 317,912.65, 476,934.89 and 93,280.41

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Solution

The fourth proportional to 317,912.65, 476,934.89 and 93,280.41 is: 139,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,912.65 : 476,934.89 = 93,280.41 : x
  2. Step 2: Convert to fraction form
    317,912.65/476,934.89 = 93,280.41/x
  3. Step 3: Cross multiply
    317,912.65x = 476,934.89 × 93,280.41
  4. Step 4: Simplify right side
    317,912.65x = 44,488,681,616.10
  5. Step 5: Solve for x
    x = 44,488,681,616.10/317,912.65
  6. Step 6: Final answer
    x = 139,939.96

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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.