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Finding the Fourth Proportional to 84,797.54, 117,015.30 and 48,981.74

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Solution

The fourth proportional to 84,797.54, 117,015.30 and 48,981.74 is: 67,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,797.54 : 117,015.30 = 48,981.74 : x
  2. Step 2: Convert to fraction form
    84,797.54/117,015.30 = 48,981.74/x
  3. Step 3: Cross multiply
    84,797.54x = 117,015.30 × 48,981.74
  4. Step 4: Simplify right side
    84,797.54x = 5,731,613,000.62
  5. Step 5: Solve for x
    x = 5,731,613,000.62/84,797.54
  6. Step 6: Final answer
    x = 67,591.74

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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.