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Finding the Fourth Proportional to 217,358.51, 326,084.69 and 67,595.87

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Solution

The fourth proportional to 217,358.51, 326,084.69 and 67,595.87 is: 101,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,358.51 : 326,084.69 = 67,595.87 : x
  2. Step 2: Convert to fraction form
    217,358.51/326,084.69 = 67,595.87/x
  3. Step 3: Cross multiply
    217,358.51x = 326,084.69 × 67,595.87
  4. Step 4: Simplify right side
    217,358.51x = 22,041,977,976.25
  5. Step 5: Solve for x
    x = 22,041,977,976.25/217,358.51
  6. Step 6: Final answer
    x = 101,408.40

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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.