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Finding the Fourth Proportional to 72,604.44, 108,909.48 and 20,018.04

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Solution

The fourth proportional to 72,604.44, 108,909.48 and 20,018.04 is: 30,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,604.44 : 108,909.48 = 20,018.04 : x
  2. Step 2: Convert to fraction form
    72,604.44/108,909.48 = 20,018.04/x
  3. Step 3: Cross multiply
    72,604.44x = 108,909.48 × 20,018.04
  4. Step 4: Simplify right side
    72,604.44x = 2,180,154,327.02
  5. Step 5: Solve for x
    x = 2,180,154,327.02/72,604.44
  6. Step 6: Final answer
    x = 30,027.84

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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.