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Finding the Fourth Proportional to 317,592.08, 476,374.92 and 80,940.56

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Solution

The fourth proportional to 317,592.08, 476,374.92 and 80,940.56 is: 121,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,592.08 : 476,374.92 = 80,940.56 : x
  2. Step 2: Convert to fraction form
    317,592.08/476,374.92 = 80,940.56/x
  3. Step 3: Cross multiply
    317,592.08x = 476,374.92 × 80,940.56
  4. Step 4: Simplify right side
    317,592.08x = 38,558,052,794.76
  5. Step 5: Solve for x
    x = 38,558,052,794.76/317,592.08
  6. Step 6: Final answer
    x = 121,407.48

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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.