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Finding the Fourth Proportional to 50,379.56, 75,124.87 and 49,929.87

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Solution

The fourth proportional to 50,379.56, 75,124.87 and 49,929.87 is: 74,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,379.56 : 75,124.87 = 49,929.87 : x
  2. Step 2: Convert to fraction form
    50,379.56/75,124.87 = 49,929.87/x
  3. Step 3: Cross multiply
    50,379.56x = 75,124.87 × 49,929.87
  4. Step 4: Simplify right side
    50,379.56x = 3,750,974,992.87
  5. Step 5: Solve for x
    x = 3,750,974,992.87/50,379.56
  6. Step 6: Final answer
    x = 74,454.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.