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Finding the Fourth Proportional to 191,408.70, 287,155.77 and 58,299.24

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Solution

The fourth proportional to 191,408.70, 287,155.77 and 58,299.24 is: 87,461.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,408.70 : 287,155.77 = 58,299.24 : x
  2. Step 2: Convert to fraction form
    191,408.70/287,155.77 = 58,299.24/x
  3. Step 3: Cross multiply
    191,408.70x = 287,155.77 × 58,299.24
  4. Step 4: Simplify right side
    191,408.70x = 16,740,964,010.83
  5. Step 5: Solve for x
    x = 16,740,964,010.83/191,408.70
  6. Step 6: Final answer
    x = 87,461.87

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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.