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Finding the Fourth Proportional to 111,662.60, 154,092.64 and 61,360.52

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Solution

The fourth proportional to 111,662.60, 154,092.64 and 61,360.52 is: 84,676.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,662.60 : 154,092.64 = 61,360.52 : x
  2. Step 2: Convert to fraction form
    111,662.60/154,092.64 = 61,360.52/x
  3. Step 3: Cross multiply
    111,662.60x = 154,092.64 × 61,360.52
  4. Step 4: Simplify right side
    111,662.60x = 9,455,204,518.57
  5. Step 5: Solve for x
    x = 9,455,204,518.57/111,662.60
  6. Step 6: Final answer
    x = 84,676.56

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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.