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Finding the Fourth Proportional to 92,864.66, 139,160.40 and 54,874.87

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Solution

The fourth proportional to 92,864.66, 139,160.40 and 54,874.87 is: 82,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,864.66 : 139,160.40 = 54,874.87 : x
  2. Step 2: Convert to fraction form
    92,864.66/139,160.40 = 54,874.87/x
  3. Step 3: Cross multiply
    92,864.66x = 139,160.40 × 54,874.87
  4. Step 4: Simplify right side
    92,864.66x = 7,636,408,163.35
  5. Step 5: Solve for x
    x = 7,636,408,163.35/92,864.66
  6. Step 6: Final answer
    x = 82,231.59

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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.