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Finding the Fourth Proportional to 64,188.41, 96,369.93 and 36,128.28

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Solution

The fourth proportional to 64,188.41, 96,369.93 and 36,128.28 is: 54,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,188.41 : 96,369.93 = 36,128.28 : x
  2. Step 2: Convert to fraction form
    64,188.41/96,369.93 = 36,128.28/x
  3. Step 3: Cross multiply
    64,188.41x = 96,369.93 × 36,128.28
  4. Step 4: Simplify right side
    64,188.41x = 3,481,679,814.62
  5. Step 5: Solve for x
    x = 3,481,679,814.62/64,188.41
  6. Step 6: Final answer
    x = 54,241.57

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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.