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Finding the Fourth Proportional to 202,317.81, 279,198.60 and 111,673.80

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Solution

The fourth proportional to 202,317.81, 279,198.60 and 111,673.80 is: 154,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,317.81 : 279,198.60 = 111,673.80 : x
  2. Step 2: Convert to fraction form
    202,317.81/279,198.60 = 111,673.80/x
  3. Step 3: Cross multiply
    202,317.81x = 279,198.60 × 111,673.80
  4. Step 4: Simplify right side
    202,317.81x = 31,179,168,616.68
  5. Step 5: Solve for x
    x = 31,179,168,616.68/202,317.81
  6. Step 6: Final answer
    x = 154,109.86

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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.