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Finding the Fourth Proportional to 264,605.20, 395,935.80 and 194,621.20

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Solution

The fourth proportional to 264,605.20, 395,935.80 and 194,621.20 is: 291,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,605.20 : 395,935.80 = 194,621.20 : x
  2. Step 2: Convert to fraction form
    264,605.20/395,935.80 = 194,621.20/x
  3. Step 3: Cross multiply
    264,605.20x = 395,935.80 × 194,621.20
  4. Step 4: Simplify right side
    264,605.20x = 77,057,500,518.96
  5. Step 5: Solve for x
    x = 77,057,500,518.96/264,605.20
  6. Step 6: Final answer
    x = 291,216.88

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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.