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Finding the Fourth Proportional to 317,163.61, 437,685.51 and 171,974.19

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Solution

The fourth proportional to 317,163.61, 437,685.51 and 171,974.19 is: 237,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,163.61 : 437,685.51 = 171,974.19 : x
  2. Step 2: Convert to fraction form
    317,163.61/437,685.51 = 171,974.19/x
  3. Step 3: Cross multiply
    317,163.61x = 437,685.51 × 171,974.19
  4. Step 4: Simplify right side
    317,163.61x = 75,270,611,056.99
  5. Step 5: Solve for x
    x = 75,270,611,056.99/317,163.61
  6. Step 6: Final answer
    x = 237,324.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.