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Finding the Fourth Proportional to 103,786.60, 155,662.74 and 37,216.60

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Solution

The fourth proportional to 103,786.60, 155,662.74 and 37,216.60 is: 55,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,786.60 : 155,662.74 = 37,216.60 : x
  2. Step 2: Convert to fraction form
    103,786.60/155,662.74 = 37,216.60/x
  3. Step 3: Cross multiply
    103,786.60x = 155,662.74 × 37,216.60
  4. Step 4: Simplify right side
    103,786.60x = 5,793,237,929.48
  5. Step 5: Solve for x
    x = 5,793,237,929.48/103,786.60
  6. Step 6: Final answer
    x = 55,818.75

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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.