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Finding the Fourth Proportional to 255,691.62, 352,855.98 and 148,325.58

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Solution

The fourth proportional to 255,691.62, 352,855.98 and 148,325.58 is: 204,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,691.62 : 352,855.98 = 148,325.58 : x
  2. Step 2: Convert to fraction form
    255,691.62/352,855.98 = 148,325.58/x
  3. Step 3: Cross multiply
    255,691.62x = 352,855.98 × 148,325.58
  4. Step 4: Simplify right side
    255,691.62x = 52,337,567,889.97
  5. Step 5: Solve for x
    x = 52,337,567,889.97/255,691.62
  6. Step 6: Final answer
    x = 204,690.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.