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Finding the Fourth Proportional to 72,174.60, 108,242.70 and 22,254.60

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Solution

The fourth proportional to 72,174.60, 108,242.70 and 22,254.60 is: 33,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,174.60 : 108,242.70 = 22,254.60 : x
  2. Step 2: Convert to fraction form
    72,174.60/108,242.70 = 22,254.60/x
  3. Step 3: Cross multiply
    72,174.60x = 108,242.70 × 22,254.60
  4. Step 4: Simplify right side
    72,174.60x = 2,408,897,991.42
  5. Step 5: Solve for x
    x = 2,408,897,991.42/72,174.60
  6. Step 6: Final answer
    x = 33,375.98

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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.