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Finding the Fourth Proportional to 373.88, 561.16 and 157.64

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Solution

The fourth proportional to 373.88, 561.16 and 157.64 is: 236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.88 : 561.16 = 157.64 : x
  2. Step 2: Convert to fraction form
    373.88/561.16 = 157.64/x
  3. Step 3: Cross multiply
    373.88x = 561.16 × 157.64
  4. Step 4: Simplify right side
    373.88x = 88,461.26
  5. Step 5: Solve for x
    x = 88,461.26/373.88
  6. Step 6: Final answer
    x = 236.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.