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Finding the Fourth Proportional to 68,220.44, 102,141.72 and 34,868.69

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Solution

The fourth proportional to 68,220.44, 102,141.72 and 34,868.69 is: 52,206.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,220.44 : 102,141.72 = 34,868.69 : x
  2. Step 2: Convert to fraction form
    68,220.44/102,141.72 = 34,868.69/x
  3. Step 3: Cross multiply
    68,220.44x = 102,141.72 × 34,868.69
  4. Step 4: Simplify right side
    68,220.44x = 3,561,547,460.04
  5. Step 5: Solve for x
    x = 3,561,547,460.04/68,220.44
  6. Step 6: Final answer
    x = 52,206.46

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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.