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Finding the Fourth Proportional to 104,294.64, 156,440.10 and 25,408.68

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Solution

The fourth proportional to 104,294.64, 156,440.10 and 25,408.68 is: 38,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,294.64 : 156,440.10 = 25,408.68 : x
  2. Step 2: Convert to fraction form
    104,294.64/156,440.10 = 25,408.68/x
  3. Step 3: Cross multiply
    104,294.64x = 156,440.10 × 25,408.68
  4. Step 4: Simplify right side
    104,294.64x = 3,974,936,440.07
  5. Step 5: Solve for x
    x = 3,974,936,440.07/104,294.64
  6. Step 6: Final answer
    x = 38,112.57

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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.