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Finding the Fourth Proportional to 61,917.40, 92,876.10 and 58,761.98

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Solution

The fourth proportional to 61,917.40, 92,876.10 and 58,761.98 is: 88,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.40 : 92,876.10 = 58,761.98 : x
  2. Step 2: Convert to fraction form
    61,917.40/92,876.10 = 58,761.98/x
  3. Step 3: Cross multiply
    61,917.40x = 92,876.10 × 58,761.98
  4. Step 4: Simplify right side
    61,917.40x = 5,457,583,530.68
  5. Step 5: Solve for x
    x = 5,457,583,530.68/61,917.40
  6. Step 6: Final answer
    x = 88,142.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.