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Finding the Fourth Proportional to 68,844.74, 103,048.40 and 37,209.78

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Solution

The fourth proportional to 68,844.74, 103,048.40 and 37,209.78 is: 55,696.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,844.74 : 103,048.40 = 37,209.78 : x
  2. Step 2: Convert to fraction form
    68,844.74/103,048.40 = 37,209.78/x
  3. Step 3: Cross multiply
    68,844.74x = 103,048.40 × 37,209.78
  4. Step 4: Simplify right side
    68,844.74x = 3,834,408,386.38
  5. Step 5: Solve for x
    x = 3,834,408,386.38/68,844.74
  6. Step 6: Final answer
    x = 55,696.47

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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.