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Finding the Fourth Proportional to 51,269.80, 76,904.70 and 48,850.60

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Solution

The fourth proportional to 51,269.80, 76,904.70 and 48,850.60 is: 73,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,269.80 : 76,904.70 = 48,850.60 : x
  2. Step 2: Convert to fraction form
    51,269.80/76,904.70 = 48,850.60/x
  3. Step 3: Cross multiply
    51,269.80x = 76,904.70 × 48,850.60
  4. Step 4: Simplify right side
    51,269.80x = 3,756,840,737.82
  5. Step 5: Solve for x
    x = 3,756,840,737.82/51,269.80
  6. Step 6: Final answer
    x = 73,275.90

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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.