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Finding the Fourth Proportional to 58,209.87, 87,223.41 and 40,474.98

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Solution

The fourth proportional to 58,209.87, 87,223.41 and 40,474.98 is: 60,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,209.87 : 87,223.41 = 40,474.98 : x
  2. Step 2: Convert to fraction form
    58,209.87/87,223.41 = 40,474.98/x
  3. Step 3: Cross multiply
    58,209.87x = 87,223.41 × 40,474.98
  4. Step 4: Simplify right side
    58,209.87x = 3,530,365,775.28
  5. Step 5: Solve for x
    x = 3,530,365,775.28/58,209.87
  6. Step 6: Final answer
    x = 60,648.92

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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.