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Finding the Fourth Proportional to 100,680.84, 150,926.94 and 34,074.36

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Solution

The fourth proportional to 100,680.84, 150,926.94 and 34,074.36 is: 51,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,680.84 : 150,926.94 = 34,074.36 : x
  2. Step 2: Convert to fraction form
    100,680.84/150,926.94 = 34,074.36/x
  3. Step 3: Cross multiply
    100,680.84x = 150,926.94 × 34,074.36
  4. Step 4: Simplify right side
    100,680.84x = 5,142,738,887.26
  5. Step 5: Solve for x
    x = 5,142,738,887.26/100,680.84
  6. Step 6: Final answer
    x = 51,079.62

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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.