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Finding the Fourth Proportional to 244, 336.60 and 156.66

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Solution

The fourth proportional to 244, 336.60 and 156.66 is: 216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    244 : 336.60 = 156.66 : x
  2. Step 2: Convert to fraction form
    244/336.60 = 156.66/x
  3. Step 3: Cross multiply
    244x = 336.60 × 156.66
  4. Step 4: Simplify right side
    244x = 52,731.76
  5. Step 5: Solve for x
    x = 52,731.76/244
  6. Step 6: Final answer
    x = 216.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.