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Finding the Fourth Proportional to 219,491.49, 329,237.37 and 61,719.95

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Solution

The fourth proportional to 219,491.49, 329,237.37 and 61,719.95 is: 92,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,491.49 : 329,237.37 = 61,719.95 : x
  2. Step 2: Convert to fraction form
    219,491.49/329,237.37 = 61,719.95/x
  3. Step 3: Cross multiply
    219,491.49x = 329,237.37 × 61,719.95
  4. Step 4: Simplify right side
    219,491.49x = 20,320,514,014.53
  5. Step 5: Solve for x
    x = 20,320,514,014.53/219,491.49
  6. Step 6: Final answer
    x = 92,579.96

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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.