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Finding the Fourth Proportional to 72,379.02, 108,584.10 and 22,458.12

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Solution

The fourth proportional to 72,379.02, 108,584.10 and 22,458.12 is: 33,692.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,379.02 : 108,584.10 = 22,458.12 : x
  2. Step 2: Convert to fraction form
    72,379.02/108,584.10 = 22,458.12/x
  3. Step 3: Cross multiply
    72,379.02x = 108,584.10 × 22,458.12
  4. Step 4: Simplify right side
    72,379.02x = 2,438,594,747.89
  5. Step 5: Solve for x
    x = 2,438,594,747.89/72,379.02
  6. Step 6: Final answer
    x = 33,692.01

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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.