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Finding the Fourth Proportional to 358.72, 537.64 and 237

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Solution

The fourth proportional to 358.72, 537.64 and 237 is: 355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.72 : 537.64 = 237 : x
  2. Step 2: Convert to fraction form
    358.72/537.64 = 237/x
  3. Step 3: Cross multiply
    358.72x = 537.64 × 237
  4. Step 4: Simplify right side
    358.72x = 127,420.68
  5. Step 5: Solve for x
    x = 127,420.68/358.72
  6. Step 6: Final answer
    x = 355.21

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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.