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Finding the Fourth Proportional to 118,873.08, 164,043.90 and 68,571

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Solution

The fourth proportional to 118,873.08, 164,043.90 and 68,571 is: 94,627.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,873.08 : 164,043.90 = 68,571 : x
  2. Step 2: Convert to fraction form
    118,873.08/164,043.90 = 68,571/x
  3. Step 3: Cross multiply
    118,873.08x = 164,043.90 × 68,571
  4. Step 4: Simplify right side
    118,873.08x = 11,248,654,266.90
  5. Step 5: Solve for x
    x = 11,248,654,266.90/118,873.08
  6. Step 6: Final answer
    x = 94,627.43

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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.