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Finding the Fourth Proportional to 104,057.91, 143,599.91 and 56,311.26

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Solution

The fourth proportional to 104,057.91, 143,599.91 and 56,311.26 is: 77,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,057.91 : 143,599.91 = 56,311.26 : x
  2. Step 2: Convert to fraction form
    104,057.91/143,599.91 = 56,311.26/x
  3. Step 3: Cross multiply
    104,057.91x = 143,599.91 × 56,311.26
  4. Step 4: Simplify right side
    104,057.91x = 8,086,291,867.99
  5. Step 5: Solve for x
    x = 8,086,291,867.99/104,057.91
  6. Step 6: Final answer
    x = 77,709.54

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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.