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Finding the Fourth Proportional to 373.98, 560.94 and 157.56

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Solution

The fourth proportional to 373.98, 560.94 and 157.56 is: 236.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.98 : 560.94 = 157.56 : x
  2. Step 2: Convert to fraction form
    373.98/560.94 = 157.56/x
  3. Step 3: Cross multiply
    373.98x = 560.94 × 157.56
  4. Step 4: Simplify right side
    373.98x = 88,381.71
  5. Step 5: Solve for x
    x = 88,381.71/373.98
  6. Step 6: Final answer
    x = 236.33

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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.