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Finding the Fourth Proportional to 228,440.68, 315,346.98 and 171,865.96

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Solution

The fourth proportional to 228,440.68, 315,346.98 and 171,865.96 is: 237,249.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,440.68 : 315,346.98 = 171,865.96 : x
  2. Step 2: Convert to fraction form
    228,440.68/315,346.98 = 171,865.96/x
  3. Step 3: Cross multiply
    228,440.68x = 315,346.98 × 171,865.96
  4. Step 4: Simplify right side
    228,440.68x = 54,197,411,450.80
  5. Step 5: Solve for x
    x = 54,197,411,450.80/228,440.68
  6. Step 6: Final answer
    x = 237,249.39

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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.