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Finding the Fourth Proportional to 109,494.28, 164,241.57 and 26,388.28

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Solution

The fourth proportional to 109,494.28, 164,241.57 and 26,388.28 is: 39,582.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,494.28 : 164,241.57 = 26,388.28 : x
  2. Step 2: Convert to fraction form
    109,494.28/164,241.57 = 26,388.28/x
  3. Step 3: Cross multiply
    109,494.28x = 164,241.57 × 26,388.28
  4. Step 4: Simplify right side
    109,494.28x = 4,334,052,841.06
  5. Step 5: Solve for x
    x = 4,334,052,841.06/109,494.28
  6. Step 6: Final answer
    x = 39,582.46

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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.