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Finding the Fourth Proportional to 251,255.20, 352,690.40 and 251,255.20

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Solution

The fourth proportional to 251,255.20, 352,690.40 and 251,255.20 is: 352,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,255.20 : 352,690.40 = 251,255.20 : x
  2. Step 2: Convert to fraction form
    251,255.20/352,690.40 = 251,255.20/x
  3. Step 3: Cross multiply
    251,255.20x = 352,690.40 × 251,255.20
  4. Step 4: Simplify right side
    251,255.20x = 88,615,296,990.08
  5. Step 5: Solve for x
    x = 88,615,296,990.08/251,255.20
  6. Step 6: Final answer
    x = 352,690.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.