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Finding the Fourth Proportional to 111,867.70, 167,801.55 and 107,566.90

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Solution

The fourth proportional to 111,867.70, 167,801.55 and 107,566.90 is: 161,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,867.70 : 167,801.55 = 107,566.90 : x
  2. Step 2: Convert to fraction form
    111,867.70/167,801.55 = 107,566.90/x
  3. Step 3: Cross multiply
    111,867.70x = 167,801.55 × 107,566.90
  4. Step 4: Simplify right side
    111,867.70x = 18,049,892,548.70
  5. Step 5: Solve for x
    x = 18,049,892,548.70/111,867.70
  6. Step 6: Final answer
    x = 161,350.35

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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.