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Finding the Fourth Proportional to 373.92, 560.56 and 157.36

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Solution

The fourth proportional to 373.92, 560.56 and 157.36 is: 235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.92 : 560.56 = 157.36 : x
  2. Step 2: Convert to fraction form
    373.92/560.56 = 157.36/x
  3. Step 3: Cross multiply
    373.92x = 560.56 × 157.36
  4. Step 4: Simplify right side
    373.92x = 88,209.72
  5. Step 5: Solve for x
    x = 88,209.72/373.92
  6. Step 6: Final answer
    x = 235.91

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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.