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Finding the Fourth Proportional to 354,889.11, 532,410.21 and 102,167.90

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Solution

The fourth proportional to 354,889.11, 532,410.21 and 102,167.90 is: 153,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,889.11 : 532,410.21 = 102,167.90 : x
  2. Step 2: Convert to fraction form
    354,889.11/532,410.21 = 102,167.90/x
  3. Step 3: Cross multiply
    354,889.11x = 532,410.21 × 102,167.90
  4. Step 4: Simplify right side
    354,889.11x = 54,395,230,432.21
  5. Step 5: Solve for x
    x = 54,395,230,432.21/354,889.11
  6. Step 6: Final answer
    x = 153,273.88

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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.