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Finding the Fourth Proportional to 61,135.92, 84,365.64 and 34,279.98

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Solution

The fourth proportional to 61,135.92, 84,365.64 and 34,279.98 is: 47,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.92 : 84,365.64 = 34,279.98 : x
  2. Step 2: Convert to fraction form
    61,135.92/84,365.64 = 34,279.98/x
  3. Step 3: Cross multiply
    61,135.92x = 84,365.64 × 34,279.98
  4. Step 4: Simplify right side
    61,135.92x = 2,892,052,451.89
  5. Step 5: Solve for x
    x = 2,892,052,451.89/61,135.92
  6. Step 6: Final answer
    x = 47,305.29

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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.