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Finding the Fourth Proportional to 61,401.78, 84,367.25 and 48,804.66

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Solution

The fourth proportional to 61,401.78, 84,367.25 and 48,804.66 is: 67,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,401.78 : 84,367.25 = 48,804.66 : x
  2. Step 2: Convert to fraction form
    61,401.78/84,367.25 = 48,804.66/x
  3. Step 3: Cross multiply
    61,401.78x = 84,367.25 × 48,804.66
  4. Step 4: Simplify right side
    61,401.78x = 4,117,514,707.36
  5. Step 5: Solve for x
    x = 4,117,514,707.36/61,401.78
  6. Step 6: Final answer
    x = 67,058.56

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.