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Finding the Fourth Proportional to 202,639.69, 279,677.49 and 117,805.96

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Solution

The fourth proportional to 202,639.69, 279,677.49 and 117,805.96 is: 162,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,639.69 : 279,677.49 = 117,805.96 : x
  2. Step 2: Convert to fraction form
    202,639.69/279,677.49 = 117,805.96/x
  3. Step 3: Cross multiply
    202,639.69x = 279,677.49 × 117,805.96
  4. Step 4: Simplify right side
    202,639.69x = 32,947,673,801.45
  5. Step 5: Solve for x
    x = 32,947,673,801.45/202,639.69
  6. Step 6: Final answer
    x = 162,592.41

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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.