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Finding the Fourth Proportional to 217,051.92, 325,588.68 and 67,394.16

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Solution

The fourth proportional to 217,051.92, 325,588.68 and 67,394.16 is: 101,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,051.92 : 325,588.68 = 67,394.16 : x
  2. Step 2: Convert to fraction form
    217,051.92/325,588.68 = 67,394.16/x
  3. Step 3: Cross multiply
    217,051.92x = 325,588.68 × 67,394.16
  4. Step 4: Simplify right side
    217,051.92x = 21,942,775,594.11
  5. Step 5: Solve for x
    x = 21,942,775,594.11/217,051.92
  6. Step 6: Final answer
    x = 101,094.59

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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.