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Finding the Fourth Proportional to 68,776.60, 103,194.59 and 37,208.89

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Solution

The fourth proportional to 68,776.60, 103,194.59 and 37,208.89 is: 55,829.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,776.60 : 103,194.59 = 37,208.89 : x
  2. Step 2: Convert to fraction form
    68,776.60/103,194.59 = 37,208.89/x
  3. Step 3: Cross multiply
    68,776.60x = 103,194.59 × 37,208.89
  4. Step 4: Simplify right side
    68,776.60x = 3,839,756,147.91
  5. Step 5: Solve for x
    x = 3,839,756,147.91/68,776.60
  6. Step 6: Final answer
    x = 55,829.40

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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.