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Finding the Fourth Proportional to 188,294.44, 259,845.54 and 103,412.20

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Solution

The fourth proportional to 188,294.44, 259,845.54 and 103,412.20 is: 142,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,294.44 : 259,845.54 = 103,412.20 : x
  2. Step 2: Convert to fraction form
    188,294.44/259,845.54 = 103,412.20/x
  3. Step 3: Cross multiply
    188,294.44x = 259,845.54 × 103,412.20
  4. Step 4: Simplify right side
    188,294.44x = 26,871,198,951.59
  5. Step 5: Solve for x
    x = 26,871,198,951.59/188,294.44
  6. Step 6: Final answer
    x = 142,708.40

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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.