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Finding the Fourth Proportional to 268,325.57, 402,484.24 and 68,644.26

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Solution

The fourth proportional to 268,325.57, 402,484.24 and 68,644.26 is: 102,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,325.57 : 402,484.24 = 68,644.26 : x
  2. Step 2: Convert to fraction form
    268,325.57/402,484.24 = 68,644.26/x
  3. Step 3: Cross multiply
    268,325.57x = 402,484.24 × 68,644.26
  4. Step 4: Simplify right side
    268,325.57x = 27,628,232,644.85
  5. Step 5: Solve for x
    x = 27,628,232,644.85/268,325.57
  6. Step 6: Final answer
    x = 102,965.34

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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.