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Finding the Fourth Proportional to 49,793.88, 74,613.04 and 42,367.80

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Solution

The fourth proportional to 49,793.88, 74,613.04 and 42,367.80 is: 63,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,793.88 : 74,613.04 = 42,367.80 : x
  2. Step 2: Convert to fraction form
    49,793.88/74,613.04 = 42,367.80/x
  3. Step 3: Cross multiply
    49,793.88x = 74,613.04 × 42,367.80
  4. Step 4: Simplify right side
    49,793.88x = 3,161,190,356.11
  5. Step 5: Solve for x
    x = 3,161,190,356.11/49,793.88
  6. Step 6: Final answer
    x = 63,485.52

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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.