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Finding the Fourth Proportional to 400.36, 600.16 and 156.82

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Solution

The fourth proportional to 400.36, 600.16 and 156.82 is: 235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.36 : 600.16 = 156.82 : x
  2. Step 2: Convert to fraction form
    400.36/600.16 = 156.82/x
  3. Step 3: Cross multiply
    400.36x = 600.16 × 156.82
  4. Step 4: Simplify right side
    400.36x = 94,117.09
  5. Step 5: Solve for x
    x = 94,117.09/400.36
  6. Step 6: Final answer
    x = 235.08

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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.