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Finding the Fourth Proportional to 64,208.16, 96,181.68 and 52,404

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Solution

The fourth proportional to 64,208.16, 96,181.68 and 52,404 is: 78,499.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,208.16 : 96,181.68 = 52,404 : x
  2. Step 2: Convert to fraction form
    64,208.16/96,181.68 = 52,404/x
  3. Step 3: Cross multiply
    64,208.16x = 96,181.68 × 52,404
  4. Step 4: Simplify right side
    64,208.16x = 5,040,304,758.72
  5. Step 5: Solve for x
    x = 5,040,304,758.72/64,208.16
  6. Step 6: Final answer
    x = 78,499.44

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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.