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Finding the Fourth Proportional to 60,020.80, 89,912.40 and 52,633.60

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Solution

The fourth proportional to 60,020.80, 89,912.40 and 52,633.60 is: 78,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,020.80 : 89,912.40 = 52,633.60 : x
  2. Step 2: Convert to fraction form
    60,020.80/89,912.40 = 52,633.60/x
  3. Step 3: Cross multiply
    60,020.80x = 89,912.40 × 52,633.60
  4. Step 4: Simplify right side
    60,020.80x = 4,732,413,296.64
  5. Step 5: Solve for x
    x = 4,732,413,296.64/60,020.80
  6. Step 6: Final answer
    x = 78,846.22

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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.