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Finding the Fourth Proportional to 272,747.54, 409,147.74 and 92,959.74

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Solution

The fourth proportional to 272,747.54, 409,147.74 and 92,959.74 is: 139,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,747.54 : 409,147.74 = 92,959.74 : x
  2. Step 2: Convert to fraction form
    272,747.54/409,147.74 = 92,959.74/x
  3. Step 3: Cross multiply
    272,747.54x = 409,147.74 × 92,959.74
  4. Step 4: Simplify right side
    272,747.54x = 38,034,267,531.99
  5. Step 5: Solve for x
    x = 38,034,267,531.99/272,747.54
  6. Step 6: Final answer
    x = 139,448.62

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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.