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Finding the Fourth Proportional to 251,278.20, 352,722.60 and 251,278.20

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Solution

The fourth proportional to 251,278.20, 352,722.60 and 251,278.20 is: 352,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,278.20 : 352,722.60 = 251,278.20 : x
  2. Step 2: Convert to fraction form
    251,278.20/352,722.60 = 251,278.20/x
  3. Step 3: Cross multiply
    251,278.20x = 352,722.60 × 251,278.20
  4. Step 4: Simplify right side
    251,278.20x = 88,631,500,027.32
  5. Step 5: Solve for x
    x = 88,631,500,027.32/251,278.20
  6. Step 6: Final answer
    x = 352,722.60

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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.