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Finding the Fourth Proportional to 250,099.76, 345,138.68 and 136,933.04

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Solution

The fourth proportional to 250,099.76, 345,138.68 and 136,933.04 is: 188,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,099.76 : 345,138.68 = 136,933.04 : x
  2. Step 2: Convert to fraction form
    250,099.76/345,138.68 = 136,933.04/x
  3. Step 3: Cross multiply
    250,099.76x = 345,138.68 × 136,933.04
  4. Step 4: Simplify right side
    250,099.76x = 47,260,888,673.99
  5. Step 5: Solve for x
    x = 47,260,888,673.99/250,099.76
  6. Step 6: Final answer
    x = 188,968.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.