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Finding the Fourth Proportional to 191,558.84, 287,380.51 and 58,449.38

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Solution

The fourth proportional to 191,558.84, 287,380.51 and 58,449.38 is: 87,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,558.84 : 287,380.51 = 58,449.38 : x
  2. Step 2: Convert to fraction form
    191,558.84/287,380.51 = 58,449.38/x
  3. Step 3: Cross multiply
    191,558.84x = 287,380.51 × 58,449.38
  4. Step 4: Simplify right side
    191,558.84x = 16,797,211,050.56
  5. Step 5: Solve for x
    x = 16,797,211,050.56/191,558.84
  6. Step 6: Final answer
    x = 87,686.96

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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.