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Finding the Fourth Proportional to 317,406.32, 476,112.27 and 80,749.25

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Solution

The fourth proportional to 317,406.32, 476,112.27 and 80,749.25 is: 121,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,406.32 : 476,112.27 = 80,749.25 : x
  2. Step 2: Convert to fraction form
    317,406.32/476,112.27 = 80,749.25/x
  3. Step 3: Cross multiply
    317,406.32x = 476,112.27 × 80,749.25
  4. Step 4: Simplify right side
    317,406.32x = 38,445,708,718.30
  5. Step 5: Solve for x
    x = 38,445,708,718.30/317,406.32
  6. Step 6: Final answer
    x = 121,124.58

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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.