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Finding the Fourth Proportional to 118,894.01, 164,077.80 and 65,179.07

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Solution

The fourth proportional to 118,894.01, 164,077.80 and 65,179.07 is: 89,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,894.01 : 164,077.80 = 65,179.07 : x
  2. Step 2: Convert to fraction form
    118,894.01/164,077.80 = 65,179.07/x
  3. Step 3: Cross multiply
    118,894.01x = 164,077.80 × 65,179.07
  4. Step 4: Simplify right side
    118,894.01x = 10,694,437,591.26
  5. Step 5: Solve for x
    x = 10,694,437,591.26/118,894.01
  6. Step 6: Final answer
    x = 89,949.34

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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.