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Finding the Fourth Proportional to 111,793.62, 154,272.06 and 61,492.62

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Solution

The fourth proportional to 111,793.62, 154,272.06 and 61,492.62 is: 84,858.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,793.62 : 154,272.06 = 61,492.62 : x
  2. Step 2: Convert to fraction form
    111,793.62/154,272.06 = 61,492.62/x
  3. Step 3: Cross multiply
    111,793.62x = 154,272.06 × 61,492.62
  4. Step 4: Simplify right side
    111,793.62x = 9,486,593,162.20
  5. Step 5: Solve for x
    x = 9,486,593,162.20/111,793.62
  6. Step 6: Final answer
    x = 84,858.09

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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.