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Finding the Fourth Proportional to 336, 503.94 and 104.82

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Solution

The fourth proportional to 336, 503.94 and 104.82 is: 157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    336 : 503.94 = 104.82 : x
  2. Step 2: Convert to fraction form
    336/503.94 = 104.82/x
  3. Step 3: Cross multiply
    336x = 503.94 × 104.82
  4. Step 4: Simplify right side
    336x = 52,822.99
  5. Step 5: Solve for x
    x = 52,822.99/336
  6. Step 6: Final answer
    x = 157.21

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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.