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Finding the Fourth Proportional to 202,168.29, 278,987.78 and 111,524.33

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Solution

The fourth proportional to 202,168.29, 278,987.78 and 111,524.33 is: 153,901.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,168.29 : 278,987.78 = 111,524.33 : x
  2. Step 2: Convert to fraction form
    202,168.29/278,987.78 = 111,524.33/x
  3. Step 3: Cross multiply
    202,168.29x = 278,987.78 × 111,524.33
  4. Step 4: Simplify right side
    202,168.29x = 31,113,926,218.97
  5. Step 5: Solve for x
    x = 31,113,926,218.97/202,168.29
  6. Step 6: Final answer
    x = 153,901.12

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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.