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Finding the Fourth Proportional to 111,652.60, 154,078.84 and 61,350.52

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Solution

The fourth proportional to 111,652.60, 154,078.84 and 61,350.52 is: 84,662.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,652.60 : 154,078.84 = 61,350.52 : x
  2. Step 2: Convert to fraction form
    111,652.60/154,078.84 = 61,350.52/x
  3. Step 3: Cross multiply
    111,652.60x = 154,078.84 × 61,350.52
  4. Step 4: Simplify right side
    111,652.60x = 9,452,816,955.00
  5. Step 5: Solve for x
    x = 9,452,816,955.00/111,652.60
  6. Step 6: Final answer
    x = 84,662.76

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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.