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Finding the Fourth Proportional to 118,199.82, 163,112.01 and 67,218.09

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Solution

The fourth proportional to 118,199.82, 163,112.01 and 67,218.09 is: 92,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,199.82 : 163,112.01 = 67,218.09 : x
  2. Step 2: Convert to fraction form
    118,199.82/163,112.01 = 67,218.09/x
  3. Step 3: Cross multiply
    118,199.82x = 163,112.01 × 67,218.09
  4. Step 4: Simplify right side
    118,199.82x = 10,964,077,768.26
  5. Step 5: Solve for x
    x = 10,964,077,768.26/118,199.82
  6. Step 6: Final answer
    x = 92,758.84

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1.5x scale

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.