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Finding the Fourth Proportional to 171,696.20, 257,544.30 and 159,254.60

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Solution

The fourth proportional to 171,696.20, 257,544.30 and 159,254.60 is: 238,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,696.20 : 257,544.30 = 159,254.60 : x
  2. Step 2: Convert to fraction form
    171,696.20/257,544.30 = 159,254.60/x
  3. Step 3: Cross multiply
    171,696.20x = 257,544.30 × 159,254.60
  4. Step 4: Simplify right side
    171,696.20x = 41,015,114,478.78
  5. Step 5: Solve for x
    x = 41,015,114,478.78/171,696.20
  6. Step 6: Final answer
    x = 238,881.90

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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.