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Finding the Fourth Proportional to 192,903.12, 290,669.04 and 158,610.96

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Solution

The fourth proportional to 192,903.12, 290,669.04 and 158,610.96 is: 238,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,903.12 : 290,669.04 = 158,610.96 : x
  2. Step 2: Convert to fraction form
    192,903.12/290,669.04 = 158,610.96/x
  3. Step 3: Cross multiply
    192,903.12x = 290,669.04 × 158,610.96
  4. Step 4: Simplify right side
    192,903.12x = 46,103,295,476.68
  5. Step 5: Solve for x
    x = 46,103,295,476.68/192,903.12
  6. Step 6: Final answer
    x = 238,997.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.