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Finding the Fourth Proportional to 61,548.40, 92,249.70 and 45,947.80

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Solution

The fourth proportional to 61,548.40, 92,249.70 and 45,947.80 is: 68,867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,548.40 : 92,249.70 = 45,947.80 : x
  2. Step 2: Convert to fraction form
    61,548.40/92,249.70 = 45,947.80/x
  3. Step 3: Cross multiply
    61,548.40x = 92,249.70 × 45,947.80
  4. Step 4: Simplify right side
    61,548.40x = 4,238,670,765.66
  5. Step 5: Solve for x
    x = 4,238,670,765.66/61,548.40
  6. Step 6: Final answer
    x = 68,867.28

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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.