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Finding the Fourth Proportional to 53,474.40, 80,211.60 and 50,623.20

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Solution

The fourth proportional to 53,474.40, 80,211.60 and 50,623.20 is: 75,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,474.40 : 80,211.60 = 50,623.20 : x
  2. Step 2: Convert to fraction form
    53,474.40/80,211.60 = 50,623.20/x
  3. Step 3: Cross multiply
    53,474.40x = 80,211.60 × 50,623.20
  4. Step 4: Simplify right side
    53,474.40x = 4,060,567,869.12
  5. Step 5: Solve for x
    x = 4,060,567,869.12/53,474.40
  6. Step 6: Final answer
    x = 75,934.80

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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.