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Finding the Fourth Proportional to 100,553.17, 150,829.62 and 25,673.32

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Solution

The fourth proportional to 100,553.17, 150,829.62 and 25,673.32 is: 38,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,553.17 : 150,829.62 = 25,673.32 : x
  2. Step 2: Convert to fraction form
    100,553.17/150,829.62 = 25,673.32/x
  3. Step 3: Cross multiply
    100,553.17x = 150,829.62 × 25,673.32
  4. Step 4: Simplify right side
    100,553.17x = 3,872,297,099.74
  5. Step 5: Solve for x
    x = 3,872,297,099.74/100,553.17
  6. Step 6: Final answer
    x = 38,509.95

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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.