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Finding the Fourth Proportional to 317.24, 476.04 and 125

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Solution

The fourth proportional to 317.24, 476.04 and 125 is: 187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.24 : 476.04 = 125 : x
  2. Step 2: Convert to fraction form
    317.24/476.04 = 125/x
  3. Step 3: Cross multiply
    317.24x = 476.04 × 125
  4. Step 4: Simplify right side
    317.24x = 59,505
  5. Step 5: Solve for x
    x = 59,505/317.24
  6. Step 6: Final answer
    x = 187.57

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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.