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Finding the Fourth Proportional to 92,624.91, 139,123.53 and 55,257.99

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Solution

The fourth proportional to 92,624.91, 139,123.53 and 55,257.99 is: 82,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,624.91 : 139,123.53 = 55,257.99 : x
  2. Step 2: Convert to fraction form
    92,624.91/139,123.53 = 55,257.99/x
  3. Step 3: Cross multiply
    92,624.91x = 139,123.53 × 55,257.99
  4. Step 4: Simplify right side
    92,624.91x = 7,687,686,629.50
  5. Step 5: Solve for x
    x = 7,687,686,629.50/92,624.91
  6. Step 6: Final answer
    x = 82,998.05

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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.