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Finding the Fourth Proportional to 150,644.64, 225,691.56 and 70,535.64

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Solution

The fourth proportional to 150,644.64, 225,691.56 and 70,535.64 is: 105,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,644.64 : 225,691.56 = 70,535.64 : x
  2. Step 2: Convert to fraction form
    150,644.64/225,691.56 = 70,535.64/x
  3. Step 3: Cross multiply
    150,644.64x = 225,691.56 × 70,535.64
  4. Step 4: Simplify right side
    150,644.64x = 15,919,298,627.20
  5. Step 5: Solve for x
    x = 15,919,298,627.20/150,644.64
  6. Step 6: Final answer
    x = 105,674.51

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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.