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Finding the Fourth Proportional to 103,620.78, 155,458.53 and 37,067.58

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Solution

The fourth proportional to 103,620.78, 155,458.53 and 37,067.58 is: 55,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.78 : 155,458.53 = 37,067.58 : x
  2. Step 2: Convert to fraction form
    103,620.78/155,458.53 = 37,067.58/x
  3. Step 3: Cross multiply
    103,620.78x = 155,458.53 × 37,067.58
  4. Step 4: Simplify right side
    103,620.78x = 5,762,471,497.46
  5. Step 5: Solve for x
    x = 5,762,471,497.46/103,620.78
  6. Step 6: Final answer
    x = 55,611.16

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1.5x scale

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.