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Finding the Fourth Proportional to 183.28, 253.04 and 117.84

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Solution

The fourth proportional to 183.28, 253.04 and 117.84 is: 162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.28 : 253.04 = 117.84 : x
  2. Step 2: Convert to fraction form
    183.28/253.04 = 117.84/x
  3. Step 3: Cross multiply
    183.28x = 253.04 × 117.84
  4. Step 4: Simplify right side
    183.28x = 29,818.23
  5. Step 5: Solve for x
    x = 29,818.23/183.28
  6. Step 6: Final answer
    x = 162.69

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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.