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Finding the Fourth Proportional to 169,705.44, 254,550.24 and 69,840.72

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Solution

The fourth proportional to 169,705.44, 254,550.24 and 69,840.72 is: 104,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,705.44 : 254,550.24 = 69,840.72 : x
  2. Step 2: Convert to fraction form
    169,705.44/254,550.24 = 69,840.72/x
  3. Step 3: Cross multiply
    169,705.44x = 254,550.24 × 69,840.72
  4. Step 4: Simplify right side
    169,705.44x = 17,777,972,037.77
  5. Step 5: Solve for x
    x = 17,777,972,037.77/169,705.44
  6. Step 6: Final answer
    x = 104,757.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.