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Finding the Fourth Proportional to 92,162.70, 138,022.61 and 52,599.87

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Solution

The fourth proportional to 92,162.70, 138,022.61 and 52,599.87 is: 78,773.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,162.70 : 138,022.61 = 52,599.87 : x
  2. Step 2: Convert to fraction form
    92,162.70/138,022.61 = 52,599.87/x
  3. Step 3: Cross multiply
    92,162.70x = 138,022.61 × 52,599.87
  4. Step 4: Simplify right side
    92,162.70x = 7,259,971,343.06
  5. Step 5: Solve for x
    x = 7,259,971,343.06/92,162.70
  6. Step 6: Final answer
    x = 78,773.42

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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.