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Finding the Fourth Proportional to 111,287.31, 166,868.67 and 48,067.95

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Solution

The fourth proportional to 111,287.31, 166,868.67 and 48,067.95 is: 72,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,287.31 : 166,868.67 = 48,067.95 : x
  2. Step 2: Convert to fraction form
    111,287.31/166,868.67 = 48,067.95/x
  3. Step 3: Cross multiply
    111,287.31x = 166,868.67 × 48,067.95
  4. Step 4: Simplify right side
    111,287.31x = 8,021,034,886.13
  5. Step 5: Solve for x
    x = 8,021,034,886.13/111,287.31
  6. Step 6: Final answer
    x = 72,075.02

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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.