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Finding the Fourth Proportional to 60,235.37, 90,357.49 and 15,861.81

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Solution

The fourth proportional to 60,235.37, 90,357.49 and 15,861.81 is: 23,793.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,235.37 : 90,357.49 = 15,861.81 : x
  2. Step 2: Convert to fraction form
    60,235.37/90,357.49 = 15,861.81/x
  3. Step 3: Cross multiply
    60,235.37x = 90,357.49 × 15,861.81
  4. Step 4: Simplify right side
    60,235.37x = 1,433,233,338.46
  5. Step 5: Solve for x
    x = 1,433,233,338.46/60,235.37
  6. Step 6: Final answer
    x = 23,793.88

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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.