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Finding the Fourth Proportional to 50,934.65, 70,360.70 and 48,443.54

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Solution

The fourth proportional to 50,934.65, 70,360.70 and 48,443.54 is: 66,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,934.65 : 70,360.70 = 48,443.54 : x
  2. Step 2: Convert to fraction form
    50,934.65/70,360.70 = 48,443.54/x
  3. Step 3: Cross multiply
    50,934.65x = 70,360.70 × 48,443.54
  4. Step 4: Simplify right side
    50,934.65x = 3,408,520,790.86
  5. Step 5: Solve for x
    x = 3,408,520,790.86/50,934.65
  6. Step 6: Final answer
    x = 66,919.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.