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Finding the Fourth Proportional to 111,464.37, 166,911.08 and 61,488.90

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Solution

The fourth proportional to 111,464.37, 166,911.08 and 61,488.90 is: 92,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,464.37 : 166,911.08 = 61,488.90 : x
  2. Step 2: Convert to fraction form
    111,464.37/166,911.08 = 61,488.90/x
  3. Step 3: Cross multiply
    111,464.37x = 166,911.08 × 61,488.90
  4. Step 4: Simplify right side
    111,464.37x = 10,263,178,399.57
  5. Step 5: Solve for x
    x = 10,263,178,399.57/111,464.37
  6. Step 6: Final answer
    x = 92,075.87

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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.