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Finding the Fourth Proportional to 317,576.50, 476,318.78 and 104,352.81

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Solution

The fourth proportional to 317,576.50, 476,318.78 and 104,352.81 is: 156,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,576.50 : 476,318.78 = 104,352.81 : x
  2. Step 2: Convert to fraction form
    317,576.50/476,318.78 = 104,352.81/x
  3. Step 3: Cross multiply
    317,576.50x = 476,318.78 × 104,352.81
  4. Step 4: Simplify right side
    317,576.50x = 49,705,201,232.14
  5. Step 5: Solve for x
    x = 49,705,201,232.14/317,576.50
  6. Step 6: Final answer
    x = 156,514.10

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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.