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Finding the Fourth Proportional to 191,471.31, 287,249.63 and 58,361.92

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Solution

The fourth proportional to 191,471.31, 287,249.63 and 58,361.92 is: 87,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,471.31 : 287,249.63 = 58,361.92 : x
  2. Step 2: Convert to fraction form
    191,471.31/287,249.63 = 58,361.92/x
  3. Step 3: Cross multiply
    191,471.31x = 287,249.63 × 58,361.92
  4. Step 4: Simplify right side
    191,471.31x = 16,764,438,916.16
  5. Step 5: Solve for x
    x = 16,764,438,916.16/191,471.31
  6. Step 6: Final answer
    x = 87,555.88

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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.