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Finding the Fourth Proportional to 60,913.35, 91,449.60 and 48,911.91

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Solution

The fourth proportional to 60,913.35, 91,449.60 and 48,911.91 is: 73,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,913.35 : 91,449.60 = 48,911.91 : x
  2. Step 2: Convert to fraction form
    60,913.35/91,449.60 = 48,911.91/x
  3. Step 3: Cross multiply
    60,913.35x = 91,449.60 × 48,911.91
  4. Step 4: Simplify right side
    60,913.35x = 4,472,974,604.74
  5. Step 5: Solve for x
    x = 4,472,974,604.74/60,913.35
  6. Step 6: Final answer
    x = 73,431.76

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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.