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Finding the Fourth Proportional to 150,579.78, 225,831.78 and 61,857.78

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Solution

The fourth proportional to 150,579.78, 225,831.78 and 61,857.78 is: 92,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,579.78 : 225,831.78 = 61,857.78 : x
  2. Step 2: Convert to fraction form
    150,579.78/225,831.78 = 61,857.78/x
  3. Step 3: Cross multiply
    150,579.78x = 225,831.78 × 61,857.78
  4. Step 4: Simplify right side
    150,579.78x = 13,969,452,564.25
  5. Step 5: Solve for x
    x = 13,969,452,564.25/150,579.78
  6. Step 6: Final answer
    x = 92,771.10

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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.