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Finding the Fourth Proportional to 61,451.89, 92,188.37 and 28,174.80

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Solution

The fourth proportional to 61,451.89, 92,188.37 and 28,174.80 is: 42,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,451.89 : 92,188.37 = 28,174.80 : x
  2. Step 2: Convert to fraction form
    61,451.89/92,188.37 = 28,174.80/x
  3. Step 3: Cross multiply
    61,451.89x = 92,188.37 × 28,174.80
  4. Step 4: Simplify right side
    61,451.89x = 2,597,388,887.08
  5. Step 5: Solve for x
    x = 2,597,388,887.08/61,451.89
  6. Step 6: Final answer
    x = 42,267.03

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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.