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Finding the Fourth Proportional to 250,013.71, 345,027.18 and 136,836.46

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Solution

The fourth proportional to 250,013.71, 345,027.18 and 136,836.46 is: 188,838.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,013.71 : 345,027.18 = 136,836.46 : x
  2. Step 2: Convert to fraction form
    250,013.71/345,027.18 = 136,836.46/x
  3. Step 3: Cross multiply
    250,013.71x = 345,027.18 × 136,836.46
  4. Step 4: Simplify right side
    250,013.71x = 47,212,297,914.98
  5. Step 5: Solve for x
    x = 47,212,297,914.98/250,013.71
  6. Step 6: Final answer
    x = 188,838.84

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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.