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Finding the Fourth Proportional to 111,254.80, 166,900.40 and 36,353.20

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Solution

The fourth proportional to 111,254.80, 166,900.40 and 36,353.20 is: 54,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,254.80 : 166,900.40 = 36,353.20 : x
  2. Step 2: Convert to fraction form
    111,254.80/166,900.40 = 36,353.20/x
  3. Step 3: Cross multiply
    111,254.80x = 166,900.40 × 36,353.20
  4. Step 4: Simplify right side
    111,254.80x = 6,067,363,621.28
  5. Step 5: Solve for x
    x = 6,067,363,621.28/111,254.80
  6. Step 6: Final answer
    x = 54,535.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.