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Finding the Fourth Proportional to 55,174.40, 82,761.60 and 43,364.60

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Solution

The fourth proportional to 55,174.40, 82,761.60 and 43,364.60 is: 65,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,174.40 : 82,761.60 = 43,364.60 : x
  2. Step 2: Convert to fraction form
    55,174.40/82,761.60 = 43,364.60/x
  3. Step 3: Cross multiply
    55,174.40x = 82,761.60 × 43,364.60
  4. Step 4: Simplify right side
    55,174.40x = 3,588,923,679.36
  5. Step 5: Solve for x
    x = 3,588,923,679.36/55,174.40
  6. Step 6: Final answer
    x = 65,046.90

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1.5x scale

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.