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Finding the Fourth Proportional to 262,610.91, 393,883.56 and 73,085.49

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Solution

The fourth proportional to 262,610.91, 393,883.56 and 73,085.49 is: 109,619.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,610.91 : 393,883.56 = 73,085.49 : x
  2. Step 2: Convert to fraction form
    262,610.91/393,883.56 = 73,085.49/x
  3. Step 3: Cross multiply
    262,610.91x = 393,883.56 × 73,085.49
  4. Step 4: Simplify right side
    262,610.91x = 28,787,172,985.54
  5. Step 5: Solve for x
    x = 28,787,172,985.54/262,610.91
  6. Step 6: Final answer
    x = 109,619.11

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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.