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Finding the Fourth Proportional to 61,182.82, 84,456.30 and 43,370.92

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Solution

The fourth proportional to 61,182.82, 84,456.30 and 43,370.92 is: 59,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,182.82 : 84,456.30 = 43,370.92 : x
  2. Step 2: Convert to fraction form
    61,182.82/84,456.30 = 43,370.92/x
  3. Step 3: Cross multiply
    61,182.82x = 84,456.30 × 43,370.92
  4. Step 4: Simplify right side
    61,182.82x = 3,662,947,430.80
  5. Step 5: Solve for x
    x = 3,662,947,430.80/61,182.82
  6. Step 6: Final answer
    x = 59,868.89

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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.