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Finding the Fourth Proportional to 51,277.80, 76,916.70 and 44,365.80

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Solution

The fourth proportional to 51,277.80, 76,916.70 and 44,365.80 is: 66,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,277.80 : 76,916.70 = 44,365.80 : x
  2. Step 2: Convert to fraction form
    51,277.80/76,916.70 = 44,365.80/x
  3. Step 3: Cross multiply
    51,277.80x = 76,916.70 × 44,365.80
  4. Step 4: Simplify right side
    51,277.80x = 3,412,470,928.86
  5. Step 5: Solve for x
    x = 3,412,470,928.86/51,277.80
  6. Step 6: Final answer
    x = 66,548.70

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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.