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Finding the Fourth Proportional to 96.36, 144.59 and 53.06

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Solution

The fourth proportional to 96.36, 144.59 and 53.06 is: 79.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.36 : 144.59 = 53.06 : x
  2. Step 2: Convert to fraction form
    96.36/144.59 = 53.06/x
  3. Step 3: Cross multiply
    96.36x = 144.59 × 53.06
  4. Step 4: Simplify right side
    96.36x = 7,672.37
  5. Step 5: Solve for x
    x = 7,672.37/96.36
  6. Step 6: Final answer
    x = 79.62

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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.