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Finding the Fourth Proportional to 111,908.70, 167,863.05 and 41,784.30

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Solution

The fourth proportional to 111,908.70, 167,863.05 and 41,784.30 is: 62,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,908.70 : 167,863.05 = 41,784.30 : x
  2. Step 2: Convert to fraction form
    111,908.70/167,863.05 = 41,784.30/x
  3. Step 3: Cross multiply
    111,908.70x = 167,863.05 × 41,784.30
  4. Step 4: Simplify right side
    111,908.70x = 7,014,040,040.12
  5. Step 5: Solve for x
    x = 7,014,040,040.12/111,908.70
  6. Step 6: Final answer
    x = 62,676.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.