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Finding the Fourth Proportional to 217,801.84, 326,737.36 and 75,690.56

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Solution

The fourth proportional to 217,801.84, 326,737.36 and 75,690.56 is: 113,547.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,801.84 : 326,737.36 = 75,690.56 : x
  2. Step 2: Convert to fraction form
    217,801.84/326,737.36 = 75,690.56/x
  3. Step 3: Cross multiply
    217,801.84x = 326,737.36 × 75,690.56
  4. Step 4: Simplify right side
    217,801.84x = 24,730,933,751.32
  5. Step 5: Solve for x
    x = 24,730,933,751.32/217,801.84
  6. Step 6: Final answer
    x = 113,547.86

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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.