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Finding the Fourth Proportional to 169,644.32, 254,553.96 and 69,878.24

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Solution

The fourth proportional to 169,644.32, 254,553.96 and 69,878.24 is: 104,853.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,644.32 : 254,553.96 = 69,878.24 : x
  2. Step 2: Convert to fraction form
    169,644.32/254,553.96 = 69,878.24/x
  3. Step 3: Cross multiply
    169,644.32x = 254,553.96 × 69,878.24
  4. Step 4: Simplify right side
    169,644.32x = 17,787,782,709.83
  5. Step 5: Solve for x
    x = 17,787,782,709.83/169,644.32
  6. Step 6: Final answer
    x = 104,853.39

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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.