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Finding the Fourth Proportional to 157.92, 237 and 156.48

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Solution

The fourth proportional to 157.92, 237 and 156.48 is: 234.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.92 : 237 = 156.48 : x
  2. Step 2: Convert to fraction form
    157.92/237 = 156.48/x
  3. Step 3: Cross multiply
    157.92x = 237 × 156.48
  4. Step 4: Simplify right side
    157.92x = 37,085.76
  5. Step 5: Solve for x
    x = 37,085.76/157.92
  6. Step 6: Final answer
    x = 234.84

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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.