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Finding the Fourth Proportional to 171,080.80, 256,621.20 and 164,082.40

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Solution

The fourth proportional to 171,080.80, 256,621.20 and 164,082.40 is: 246,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,080.80 : 256,621.20 = 164,082.40 : x
  2. Step 2: Convert to fraction form
    171,080.80/256,621.20 = 164,082.40/x
  3. Step 3: Cross multiply
    171,080.80x = 256,621.20 × 164,082.40
  4. Step 4: Simplify right side
    171,080.80x = 42,107,022,386.88
  5. Step 5: Solve for x
    x = 42,107,022,386.88/171,080.80
  6. Step 6: Final answer
    x = 246,123.60

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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.