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Finding the Fourth Proportional to 231,606.60, 347,409.90 and 228,107.40

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Solution

The fourth proportional to 231,606.60, 347,409.90 and 228,107.40 is: 342,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,606.60 : 347,409.90 = 228,107.40 : x
  2. Step 2: Convert to fraction form
    231,606.60/347,409.90 = 228,107.40/x
  3. Step 3: Cross multiply
    231,606.60x = 347,409.90 × 228,107.40
  4. Step 4: Simplify right side
    231,606.60x = 79,246,769,023.26
  5. Step 5: Solve for x
    x = 79,246,769,023.26/231,606.60
  6. Step 6: Final answer
    x = 342,161.10

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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.