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Finding the Fourth Proportional to 111,993.04, 154,550.60 and 66,672.59

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Solution

The fourth proportional to 111,993.04, 154,550.60 and 66,672.59 is: 92,008.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,993.04 : 154,550.60 = 66,672.59 : x
  2. Step 2: Convert to fraction form
    111,993.04/154,550.60 = 66,672.59/x
  3. Step 3: Cross multiply
    111,993.04x = 154,550.60 × 66,672.59
  4. Step 4: Simplify right side
    111,993.04x = 10,304,287,931.96
  5. Step 5: Solve for x
    x = 10,304,287,931.96/111,993.04
  6. Step 6: Final answer
    x = 92,008.29

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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.