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Finding the Fourth Proportional to 104,057.54, 143,599.78 and 56,310.88

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Solution

The fourth proportional to 104,057.54, 143,599.78 and 56,310.88 is: 77,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,057.54 : 143,599.78 = 56,310.88 : x
  2. Step 2: Convert to fraction form
    104,057.54/143,599.78 = 56,310.88/x
  3. Step 3: Cross multiply
    104,057.54x = 143,599.78 × 56,310.88
  4. Step 4: Simplify right side
    104,057.54x = 8,086,229,691.00
  5. Step 5: Solve for x
    x = 8,086,229,691.00/104,057.54
  6. Step 6: Final answer
    x = 77,709.21

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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.