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Finding the Fourth Proportional to 111,650.60, 154,076.10 and 61,348.52

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Solution

The fourth proportional to 111,650.60, 154,076.10 and 61,348.52 is: 84,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,650.60 : 154,076.10 = 61,348.52 : x
  2. Step 2: Convert to fraction form
    111,650.60/154,076.10 = 61,348.52/x
  3. Step 3: Cross multiply
    111,650.60x = 154,076.10 × 61,348.52
  4. Step 4: Simplify right side
    111,650.60x = 9,452,340,702.37
  5. Step 5: Solve for x
    x = 9,452,340,702.37/111,650.60
  6. Step 6: Final answer
    x = 84,660.01

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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.