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Finding the Fourth Proportional to 104,586.98, 144,329.97 and 56,840.34

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Solution

The fourth proportional to 104,586.98, 144,329.97 and 56,840.34 is: 78,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,586.98 : 144,329.97 = 56,840.34 : x
  2. Step 2: Convert to fraction form
    104,586.98/144,329.97 = 56,840.34/x
  3. Step 3: Cross multiply
    104,586.98x = 144,329.97 × 56,840.34
  4. Step 4: Simplify right side
    104,586.98x = 8,203,764,566.99
  5. Step 5: Solve for x
    x = 8,203,764,566.99/104,586.98
  6. Step 6: Final answer
    x = 78,439.64

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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.