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Finding the Fourth Proportional to 104,840.56, 144,682.56 and 57,096.49

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Solution

The fourth proportional to 104,840.56, 144,682.56 and 57,096.49 is: 78,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,840.56 : 144,682.56 = 57,096.49 : x
  2. Step 2: Convert to fraction form
    104,840.56/144,682.56 = 57,096.49/x
  3. Step 3: Cross multiply
    104,840.56x = 144,682.56 × 57,096.49
  4. Step 4: Simplify right side
    104,840.56x = 8,260,866,340.21
  5. Step 5: Solve for x
    x = 8,260,866,340.21/104,840.56
  6. Step 6: Final answer
    x = 78,794.57

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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.