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Finding the Fourth Proportional to 317,574.92, 476,026.50 and 104,286.80

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Solution

The fourth proportional to 317,574.92, 476,026.50 and 104,286.80 is: 156,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,574.92 : 476,026.50 = 104,286.80 : x
  2. Step 2: Convert to fraction form
    317,574.92/476,026.50 = 104,286.80/x
  3. Step 3: Cross multiply
    317,574.92x = 476,026.50 × 104,286.80
  4. Step 4: Simplify right side
    317,574.92x = 49,643,280,400.20
  5. Step 5: Solve for x
    x = 49,643,280,400.20/317,574.92
  6. Step 6: Final answer
    x = 156,319.90

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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.