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Finding the Fourth Proportional to 317,421, 476,251.38 and 167,655.24

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Solution

The fourth proportional to 317,421, 476,251.38 and 167,655.24 is: 251,546.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,421 : 476,251.38 = 167,655.24 : x
  2. Step 2: Convert to fraction form
    317,421/476,251.38 = 167,655.24/x
  3. Step 3: Cross multiply
    317,421x = 476,251.38 × 167,655.24
  4. Step 4: Simplify right side
    317,421x = 79,846,039,414.23
  5. Step 5: Solve for x
    x = 79,846,039,414.23/317,421
  6. Step 6: Final answer
    x = 251,546.18

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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.