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Finding the Fourth Proportional to 55,703.20, 83,631.60 and 44,029.60

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Solution

The fourth proportional to 55,703.20, 83,631.60 and 44,029.60 is: 66,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,703.20 : 83,631.60 = 44,029.60 : x
  2. Step 2: Convert to fraction form
    55,703.20/83,631.60 = 44,029.60/x
  3. Step 3: Cross multiply
    55,703.20x = 83,631.60 × 44,029.60
  4. Step 4: Simplify right side
    55,703.20x = 3,682,265,895.36
  5. Step 5: Solve for x
    x = 3,682,265,895.36/55,703.20
  6. Step 6: Final answer
    x = 66,105.11

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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.