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Finding the Fourth Proportional to 57,355.60, 79,136.88 and 33,468.64

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Solution

The fourth proportional to 57,355.60, 79,136.88 and 33,468.64 is: 46,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,355.60 : 79,136.88 = 33,468.64 : x
  2. Step 2: Convert to fraction form
    57,355.60/79,136.88 = 33,468.64/x
  3. Step 3: Cross multiply
    57,355.60x = 79,136.88 × 33,468.64
  4. Step 4: Simplify right side
    57,355.60x = 2,648,603,747.44
  5. Step 5: Solve for x
    x = 2,648,603,747.44/57,355.60
  6. Step 6: Final answer
    x = 46,178.64

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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.