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Finding the Fourth Proportional to 317,392.96, 476,087.28 and 80,733.52

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Solution

The fourth proportional to 317,392.96, 476,087.28 and 80,733.52 is: 121,099.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,392.96 : 476,087.28 = 80,733.52 : x
  2. Step 2: Convert to fraction form
    317,392.96/476,087.28 = 80,733.52/x
  3. Step 3: Cross multiply
    317,392.96x = 476,087.28 × 80,733.52
  4. Step 4: Simplify right side
    317,392.96x = 38,436,201,941.63
  5. Step 5: Solve for x
    x = 38,436,201,941.63/317,392.96
  6. Step 6: Final answer
    x = 121,099.73

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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.