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Finding the Fourth Proportional to 331,053.60, 496,785.60 and 173,395.20

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Solution

The fourth proportional to 331,053.60, 496,785.60 and 173,395.20 is: 260,200.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,053.60 : 496,785.60 = 173,395.20 : x
  2. Step 2: Convert to fraction form
    331,053.60/496,785.60 = 173,395.20/x
  3. Step 3: Cross multiply
    331,053.60x = 496,785.60 × 173,395.20
  4. Step 4: Simplify right side
    331,053.60x = 86,140,238,469.12
  5. Step 5: Solve for x
    x = 86,140,238,469.12/331,053.60
  6. Step 6: Final answer
    x = 260,200.28

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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.