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Finding the Fourth Proportional to 191,474.98, 287,253.90 and 58,351.72

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Solution

The fourth proportional to 191,474.98, 287,253.90 and 58,351.72 is: 87,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,474.98 : 287,253.90 = 58,351.72 : x
  2. Step 2: Convert to fraction form
    191,474.98/287,253.90 = 58,351.72/x
  3. Step 3: Cross multiply
    191,474.98x = 287,253.90 × 58,351.72
  4. Step 4: Simplify right side
    191,474.98x = 16,761,759,141.71
  5. Step 5: Solve for x
    x = 16,761,759,141.71/191,474.98
  6. Step 6: Final answer
    x = 87,540.21

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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.