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Finding the Fourth Proportional to 262,652.20, 393,863.10 and 104,828.20

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Solution

The fourth proportional to 262,652.20, 393,863.10 and 104,828.20 is: 157,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,652.20 : 393,863.10 = 104,828.20 : x
  2. Step 2: Convert to fraction form
    262,652.20/393,863.10 = 104,828.20/x
  3. Step 3: Cross multiply
    262,652.20x = 393,863.10 × 104,828.20
  4. Step 4: Simplify right side
    262,652.20x = 41,287,959,819.42
  5. Step 5: Solve for x
    x = 41,287,959,819.42/262,652.20
  6. Step 6: Final answer
    x = 157,196.32

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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.