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Finding the Fourth Proportional to 191,485.14, 287,270.34 and 58,375.74

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Solution

The fourth proportional to 191,485.14, 287,270.34 and 58,375.74 is: 87,576.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,485.14 : 287,270.34 = 58,375.74 : x
  2. Step 2: Convert to fraction form
    191,485.14/287,270.34 = 58,375.74/x
  3. Step 3: Cross multiply
    191,485.14x = 287,270.34 × 58,375.74
  4. Step 4: Simplify right side
    191,485.14x = 16,769,618,677.55
  5. Step 5: Solve for x
    x = 16,769,618,677.55/191,485.14
  6. Step 6: Final answer
    x = 87,576.61

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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.