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Finding the Fourth Proportional to 60,188.67, 90,289.08 and 20,748.56

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Solution

The fourth proportional to 60,188.67, 90,289.08 and 20,748.56 is: 31,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,188.67 : 90,289.08 = 20,748.56 : x
  2. Step 2: Convert to fraction form
    60,188.67/90,289.08 = 20,748.56/x
  3. Step 3: Cross multiply
    60,188.67x = 90,289.08 × 20,748.56
  4. Step 4: Simplify right side
    60,188.67x = 1,873,367,942.28
  5. Step 5: Solve for x
    x = 1,873,367,942.28/60,188.67
  6. Step 6: Final answer
    x = 31,124.93

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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.