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Finding the Fourth Proportional to 77,553.98, 116,101.33 and 47,876.39

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Solution

The fourth proportional to 77,553.98, 116,101.33 and 47,876.39 is: 71,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,553.98 : 116,101.33 = 47,876.39 : x
  2. Step 2: Convert to fraction form
    77,553.98/116,101.33 = 47,876.39/x
  3. Step 3: Cross multiply
    77,553.98x = 116,101.33 × 47,876.39
  4. Step 4: Simplify right side
    77,553.98x = 5,558,512,554.60
  5. Step 5: Solve for x
    x = 5,558,512,554.60/77,553.98
  6. Step 6: Final answer
    x = 71,672.82

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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.