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Finding the Fourth Proportional to 111,667.90, 154,115.02 and 63,936.58

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Solution

The fourth proportional to 111,667.90, 154,115.02 and 63,936.58 is: 88,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,667.90 : 154,115.02 = 63,936.58 : x
  2. Step 2: Convert to fraction form
    111,667.90/154,115.02 = 63,936.58/x
  3. Step 3: Cross multiply
    111,667.90x = 154,115.02 × 63,936.58
  4. Step 4: Simplify right side
    111,667.90x = 9,853,587,305.43
  5. Step 5: Solve for x
    x = 9,853,587,305.43/111,667.90
  6. Step 6: Final answer
    x = 88,240.11

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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.