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Finding the Fourth Proportional to 60,367.20, 90,477.90 and 30,769.80

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Solution

The fourth proportional to 60,367.20, 90,477.90 and 30,769.80 is: 46,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,367.20 : 90,477.90 = 30,769.80 : x
  2. Step 2: Convert to fraction form
    60,367.20/90,477.90 = 30,769.80/x
  3. Step 3: Cross multiply
    60,367.20x = 90,477.90 × 30,769.80
  4. Step 4: Simplify right side
    60,367.20x = 2,783,986,887.42
  5. Step 5: Solve for x
    x = 2,783,986,887.42/60,367.20
  6. Step 6: Final answer
    x = 46,117.54

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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.