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Finding the Fourth Proportional to 250,636.20, 375,866.70 and 100,837.56

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Solution

The fourth proportional to 250,636.20, 375,866.70 and 100,837.56 is: 151,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,636.20 : 375,866.70 = 100,837.56 : x
  2. Step 2: Convert to fraction form
    250,636.20/375,866.70 = 100,837.56/x
  3. Step 3: Cross multiply
    250,636.20x = 375,866.70 × 100,837.56
  4. Step 4: Simplify right side
    250,636.20x = 37,901,480,913.25
  5. Step 5: Solve for x
    x = 37,901,480,913.25/250,636.20
  6. Step 6: Final answer
    x = 151,221.10

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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.