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Finding the Fourth Proportional to 317,630.96, 476,345.27 and 104,349.36

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Solution

The fourth proportional to 317,630.96, 476,345.27 and 104,349.36 is: 156,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,630.96 : 476,345.27 = 104,349.36 : x
  2. Step 2: Convert to fraction form
    317,630.96/476,345.27 = 104,349.36/x
  3. Step 3: Cross multiply
    317,630.96x = 476,345.27 × 104,349.36
  4. Step 4: Simplify right side
    317,630.96x = 49,706,324,324.40
  5. Step 5: Solve for x
    x = 49,706,324,324.40/317,630.96
  6. Step 6: Final answer
    x = 156,490.81

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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.