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Finding the Fourth Proportional to 333.72, 500.67 and 117.30

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Solution

The fourth proportional to 333.72, 500.67 and 117.30 is: 175.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.72 : 500.67 = 117.30 : x
  2. Step 2: Convert to fraction form
    333.72/500.67 = 117.30/x
  3. Step 3: Cross multiply
    333.72x = 500.67 × 117.30
  4. Step 4: Simplify right side
    333.72x = 58,728.59
  5. Step 5: Solve for x
    x = 58,728.59/333.72
  6. Step 6: Final answer
    x = 175.98

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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.