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Finding the Fourth Proportional to 250,636.75, 375,970.11 and 100,876.39

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Solution

The fourth proportional to 250,636.75, 375,970.11 and 100,876.39 is: 151,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,636.75 : 375,970.11 = 100,876.39 : x
  2. Step 2: Convert to fraction form
    250,636.75/375,970.11 = 100,876.39/x
  3. Step 3: Cross multiply
    250,636.75x = 375,970.11 × 100,876.39
  4. Step 4: Simplify right side
    250,636.75x = 37,926,507,444.70
  5. Step 5: Solve for x
    x = 37,926,507,444.70/250,636.75
  6. Step 6: Final answer
    x = 151,320.62

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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.