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Finding the Fourth Proportional to 228,898.31, 343,236.69 and 79,086.07

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Solution

The fourth proportional to 228,898.31, 343,236.69 and 79,086.07 is: 118,590.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,898.31 : 343,236.69 = 79,086.07 : x
  2. Step 2: Convert to fraction form
    228,898.31/343,236.69 = 79,086.07/x
  3. Step 3: Cross multiply
    228,898.31x = 343,236.69 × 79,086.07
  4. Step 4: Simplify right side
    228,898.31x = 27,145,241,320.95
  5. Step 5: Solve for x
    x = 27,145,241,320.95/228,898.31
  6. Step 6: Final answer
    x = 118,590.84

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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.