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Finding the Fourth Proportional to 62,446.78, 86,186.76 and 46,420.54

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Solution

The fourth proportional to 62,446.78, 86,186.76 and 46,420.54 is: 64,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,446.78 : 86,186.76 = 46,420.54 : x
  2. Step 2: Convert to fraction form
    62,446.78/86,186.76 = 46,420.54/x
  3. Step 3: Cross multiply
    62,446.78x = 86,186.76 × 46,420.54
  4. Step 4: Simplify right side
    62,446.78x = 4,000,835,940.05
  5. Step 5: Solve for x
    x = 4,000,835,940.05/62,446.78
  6. Step 6: Final answer
    x = 64,067.93

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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.