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Finding the Fourth Proportional to 103,953.84, 155,982.60 and 37,408.86

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Solution

The fourth proportional to 103,953.84, 155,982.60 and 37,408.86 is: 56,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,953.84 : 155,982.60 = 37,408.86 : x
  2. Step 2: Convert to fraction form
    103,953.84/155,982.60 = 37,408.86/x
  3. Step 3: Cross multiply
    103,953.84x = 155,982.60 × 37,408.86
  4. Step 4: Simplify right side
    103,953.84x = 5,835,131,245.84
  5. Step 5: Solve for x
    x = 5,835,131,245.84/103,953.84
  6. Step 6: Final answer
    x = 56,131.95

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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.