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Finding the Fourth Proportional to 304,311.20, 456,466.80 and 82,695.20

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Solution

The fourth proportional to 304,311.20, 456,466.80 and 82,695.20 is: 124,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,311.20 : 456,466.80 = 82,695.20 : x
  2. Step 2: Convert to fraction form
    304,311.20/456,466.80 = 82,695.20/x
  3. Step 3: Cross multiply
    304,311.20x = 456,466.80 × 82,695.20
  4. Step 4: Simplify right side
    304,311.20x = 37,747,613,319.36
  5. Step 5: Solve for x
    x = 37,747,613,319.36/304,311.20
  6. Step 6: Final answer
    x = 124,042.80

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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.