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Finding the Fourth Proportional to 199,857.66, 275,923.71 and 124,508.22

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Solution

The fourth proportional to 199,857.66, 275,923.71 and 124,508.22 is: 171,896.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,857.66 : 275,923.71 = 124,508.22 : x
  2. Step 2: Convert to fraction form
    199,857.66/275,923.71 = 124,508.22/x
  3. Step 3: Cross multiply
    199,857.66x = 275,923.71 × 124,508.22
  4. Step 4: Simplify right side
    199,857.66x = 34,354,769,987.90
  5. Step 5: Solve for x
    x = 34,354,769,987.90/199,857.66
  6. Step 6: Final answer
    x = 171,896.19

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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.