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Finding the Fourth Proportional to 217,216.44, 325,869.60 and 104,974.74

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Solution

The fourth proportional to 217,216.44, 325,869.60 and 104,974.74 is: 157,483.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,216.44 : 325,869.60 = 104,974.74 : x
  2. Step 2: Convert to fraction form
    217,216.44/325,869.60 = 104,974.74/x
  3. Step 3: Cross multiply
    217,216.44x = 325,869.60 × 104,974.74
  4. Step 4: Simplify right side
    217,216.44x = 34,208,076,533.90
  5. Step 5: Solve for x
    x = 34,208,076,533.90/217,216.44
  6. Step 6: Final answer
    x = 157,483.83

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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.