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Finding the Fourth Proportional to 92,616.41, 139,110.78 and 55,249.49

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Solution

The fourth proportional to 92,616.41, 139,110.78 and 55,249.49 is: 82,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,616.41 : 139,110.78 = 55,249.49 : x
  2. Step 2: Convert to fraction form
    92,616.41/139,110.78 = 55,249.49/x
  3. Step 3: Cross multiply
    92,616.41x = 139,110.78 × 55,249.49
  4. Step 4: Simplify right side
    92,616.41x = 7,685,799,648.50
  5. Step 5: Solve for x
    x = 7,685,799,648.50/92,616.41
  6. Step 6: Final answer
    x = 82,985.29

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1.5x scale

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.