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Finding the Fourth Proportional to 104,274.64, 156,412.14 and 25,388.92

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Solution

The fourth proportional to 104,274.64, 156,412.14 and 25,388.92 is: 38,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,274.64 : 156,412.14 = 25,388.92 : x
  2. Step 2: Convert to fraction form
    104,274.64/156,412.14 = 25,388.92/x
  3. Step 3: Cross multiply
    104,274.64x = 156,412.14 × 25,388.92
  4. Step 4: Simplify right side
    104,274.64x = 3,971,135,309.49
  5. Step 5: Solve for x
    x = 3,971,135,309.49/104,274.64
  6. Step 6: Final answer
    x = 38,083.42

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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.