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Finding the Fourth Proportional to 56,247.40, 84,140.70 and 50,717.80

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Solution

The fourth proportional to 56,247.40, 84,140.70 and 50,717.80 is: 75,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,247.40 : 84,140.70 = 50,717.80 : x
  2. Step 2: Convert to fraction form
    56,247.40/84,140.70 = 50,717.80/x
  3. Step 3: Cross multiply
    56,247.40x = 84,140.70 × 50,717.80
  4. Step 4: Simplify right side
    56,247.40x = 4,267,431,194.46
  5. Step 5: Solve for x
    x = 4,267,431,194.46/56,247.40
  6. Step 6: Final answer
    x = 75,868.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.