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Finding the Fourth Proportional to 104,563.30, 144,299.50 and 56,819.74

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Solution

The fourth proportional to 104,563.30, 144,299.50 and 56,819.74 is: 78,412.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,563.30 : 144,299.50 = 56,819.74 : x
  2. Step 2: Convert to fraction form
    104,563.30/144,299.50 = 56,819.74/x
  3. Step 3: Cross multiply
    104,563.30x = 144,299.50 × 56,819.74
  4. Step 4: Simplify right side
    104,563.30x = 8,199,060,072.13
  5. Step 5: Solve for x
    x = 8,199,060,072.13/104,563.30
  6. Step 6: Final answer
    x = 78,412.41

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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.