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Finding the Fourth Proportional to 96.35, 144.48 and 53.00

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Solution

The fourth proportional to 96.35, 144.48 and 53.00 is: 79.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.35 : 144.48 = 53.00 : x
  2. Step 2: Convert to fraction form
    96.35/144.48 = 53.00/x
  3. Step 3: Cross multiply
    96.35x = 144.48 × 53.00
  4. Step 4: Simplify right side
    96.35x = 7,656.72
  5. Step 5: Solve for x
    x = 7,656.72/96.35
  6. Step 6: Final answer
    x = 79.47

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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.