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Finding the Third Proportional to 157.25 and 237.50

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Solution

The third proportional to 157.25 and 237.50 is: 358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.25 : 237.50 = 237.50 : x
  2. Step 2: Convert to fraction form
    157.25/237.50 = 237.50/x
  3. Step 3: Cross multiply
    157.25x = 237.50 × 237.50
  4. Step 4: Simplify right side
    157.25x = 56,406.25
  5. Step 5: Solve for x
    x = 56,406.25/157.25
  6. Step 6: Final answer
    x = 358.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.