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Finding the Fourth Proportional to 143,625.69, 198,227.48 and 83,233.08

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Solution

The fourth proportional to 143,625.69, 198,227.48 and 83,233.08 is: 114,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,625.69 : 198,227.48 = 83,233.08 : x
  2. Step 2: Convert to fraction form
    143,625.69/198,227.48 = 83,233.08/x
  3. Step 3: Cross multiply
    143,625.69x = 198,227.48 × 83,233.08
  4. Step 4: Simplify right side
    143,625.69x = 16,499,083,284.87
  5. Step 5: Solve for x
    x = 16,499,083,284.87/143,625.69
  6. Step 6: Final answer
    x = 114,875.57

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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.