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Finding the Fourth Proportional to 205,877.88, 308,602.62 and 79,604.82

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Solution

The fourth proportional to 205,877.88, 308,602.62 and 79,604.82 is: 119,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,877.88 : 308,602.62 = 79,604.82 : x
  2. Step 2: Convert to fraction form
    205,877.88/308,602.62 = 79,604.82/x
  3. Step 3: Cross multiply
    205,877.88x = 308,602.62 × 79,604.82
  4. Step 4: Simplify right side
    205,877.88x = 24,566,256,016.63
  5. Step 5: Solve for x
    x = 24,566,256,016.63/205,877.88
  6. Step 6: Final answer
    x = 119,324.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.