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Finding the Fourth Proportional to 104,058.56, 143,600.82 and 56,311.91

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Solution

The fourth proportional to 104,058.56, 143,600.82 and 56,311.91 is: 77,710.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,058.56 : 143,600.82 = 56,311.91 : x
  2. Step 2: Convert to fraction form
    104,058.56/143,600.82 = 56,311.91/x
  3. Step 3: Cross multiply
    104,058.56x = 143,600.82 × 56,311.91
  4. Step 4: Simplify right side
    104,058.56x = 8,086,436,451.77
  5. Step 5: Solve for x
    x = 8,086,436,451.77/104,058.56
  6. Step 6: Final answer
    x = 77,710.44

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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.