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Finding the Fourth Proportional to 111,365.11, 167,047.67 and 91,583.70

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Solution

The fourth proportional to 111,365.11, 167,047.67 and 91,583.70 is: 137,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,365.11 : 167,047.67 = 91,583.70 : x
  2. Step 2: Convert to fraction form
    111,365.11/167,047.67 = 91,583.70/x
  3. Step 3: Cross multiply
    111,365.11x = 167,047.67 × 91,583.70
  4. Step 4: Simplify right side
    111,365.11x = 15,298,843,694.98
  5. Step 5: Solve for x
    x = 15,298,843,694.98/111,365.11
  6. Step 6: Final answer
    x = 137,375.55

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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.