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Finding the Fourth Proportional to 228,323, 315,163.46 and 132,909.88

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Solution

The fourth proportional to 228,323, 315,163.46 and 132,909.88 is: 183,460.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,323 : 315,163.46 = 132,909.88 : x
  2. Step 2: Convert to fraction form
    228,323/315,163.46 = 132,909.88/x
  3. Step 3: Cross multiply
    228,323x = 315,163.46 × 132,909.88
  4. Step 4: Simplify right side
    228,323x = 41,888,337,648.98
  5. Step 5: Solve for x
    x = 41,888,337,648.98/228,323
  6. Step 6: Final answer
    x = 183,460.88

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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.