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Finding the Fourth Proportional to 74,495.96, 102,789.70 and 41,791.48

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Solution

The fourth proportional to 74,495.96, 102,789.70 and 41,791.48 is: 57,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,495.96 : 102,789.70 = 41,791.48 : x
  2. Step 2: Convert to fraction form
    74,495.96/102,789.70 = 41,791.48/x
  3. Step 3: Cross multiply
    74,495.96x = 102,789.70 × 41,791.48
  4. Step 4: Simplify right side
    74,495.96x = 4,295,733,691.76
  5. Step 5: Solve for x
    x = 4,295,733,691.76/74,495.96
  6. Step 6: Final answer
    x = 57,663.98

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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.