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Finding the Fourth Proportional to 338,665.44, 507,959.28 and 89,366.88

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Solution

The fourth proportional to 338,665.44, 507,959.28 and 89,366.88 is: 134,040.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,665.44 : 507,959.28 = 89,366.88 : x
  2. Step 2: Convert to fraction form
    338,665.44/507,959.28 = 89,366.88/x
  3. Step 3: Cross multiply
    338,665.44x = 507,959.28 × 89,366.88
  4. Step 4: Simplify right side
    338,665.44x = 45,394,736,020.65
  5. Step 5: Solve for x
    x = 45,394,736,020.65/338,665.44
  6. Step 6: Final answer
    x = 134,040.06

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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.