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Finding the Fourth Proportional to 228,801.76, 343,118.44 and 79,003.60

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Solution

The fourth proportional to 228,801.76, 343,118.44 and 79,003.60 is: 118,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,801.76 : 343,118.44 = 79,003.60 : x
  2. Step 2: Convert to fraction form
    228,801.76/343,118.44 = 79,003.60/x
  3. Step 3: Cross multiply
    228,801.76x = 343,118.44 × 79,003.60
  4. Step 4: Simplify right side
    228,801.76x = 27,107,591,986.38
  5. Step 5: Solve for x
    x = 27,107,591,986.38/228,801.76
  6. Step 6: Final answer
    x = 118,476.33

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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.