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Finding the Fourth Proportional to 61,046.61, 84,161.61 and 52,189.26

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Solution

The fourth proportional to 61,046.61, 84,161.61 and 52,189.26 is: 71,950.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,046.61 : 84,161.61 = 52,189.26 : x
  2. Step 2: Convert to fraction form
    61,046.61/84,161.61 = 52,189.26/x
  3. Step 3: Cross multiply
    61,046.61x = 84,161.61 × 52,189.26
  4. Step 4: Simplify right side
    61,046.61x = 4,392,332,146.31
  5. Step 5: Solve for x
    x = 4,392,332,146.31/61,046.61
  6. Step 6: Final answer
    x = 71,950.47

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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.