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Finding the Fourth Proportional to 118,964.67, 164,175.84 and 65,251.95

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Solution

The fourth proportional to 118,964.67, 164,175.84 and 65,251.95 is: 90,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,964.67 : 164,175.84 = 65,251.95 : x
  2. Step 2: Convert to fraction form
    118,964.67/164,175.84 = 65,251.95/x
  3. Step 3: Cross multiply
    118,964.67x = 164,175.84 × 65,251.95
  4. Step 4: Simplify right side
    118,964.67x = 10,712,793,702.89
  5. Step 5: Solve for x
    x = 10,712,793,702.89/118,964.67
  6. Step 6: Final answer
    x = 90,050.21

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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.