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Finding the Fourth Proportional to 317,263.75, 475,908.59 and 80,612.53

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Solution

The fourth proportional to 317,263.75, 475,908.59 and 80,612.53 is: 120,922.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,263.75 : 475,908.59 = 80,612.53 : x
  2. Step 2: Convert to fraction form
    317,263.75/475,908.59 = 80,612.53/x
  3. Step 3: Cross multiply
    317,263.75x = 475,908.59 × 80,612.53
  4. Step 4: Simplify right side
    317,263.75x = 38,364,195,085.57
  5. Step 5: Solve for x
    x = 38,364,195,085.57/317,263.75
  6. Step 6: Final answer
    x = 120,922.09

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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.