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Finding the Fourth Proportional to 111,017.98, 166,528.56 and 36,138.52

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Solution

The fourth proportional to 111,017.98, 166,528.56 and 36,138.52 is: 54,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,017.98 : 166,528.56 = 36,138.52 : x
  2. Step 2: Convert to fraction form
    111,017.98/166,528.56 = 36,138.52/x
  3. Step 3: Cross multiply
    111,017.98x = 166,528.56 × 36,138.52
  4. Step 4: Simplify right side
    111,017.98x = 6,018,095,696.13
  5. Step 5: Solve for x
    x = 6,018,095,696.13/111,017.98
  6. Step 6: Final answer
    x = 54,208.30

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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.