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Finding the Fourth Proportional to 118,951.32, 164,137.65 and 67,967.35

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Solution

The fourth proportional to 118,951.32, 164,137.65 and 67,967.35 is: 93,786.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,951.32 : 164,137.65 = 67,967.35 : x
  2. Step 2: Convert to fraction form
    118,951.32/164,137.65 = 67,967.35/x
  3. Step 3: Cross multiply
    118,951.32x = 164,137.65 × 67,967.35
  4. Step 4: Simplify right side
    118,951.32x = 11,156,001,105.73
  5. Step 5: Solve for x
    x = 11,156,001,105.73/118,951.32
  6. Step 6: Final answer
    x = 93,786.27

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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.