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Finding the Fourth Proportional to 209,613.57, 314,469.09 and 59,855.91

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Solution

The fourth proportional to 209,613.57, 314,469.09 and 59,855.91 is: 89,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,613.57 : 314,469.09 = 59,855.91 : x
  2. Step 2: Convert to fraction form
    209,613.57/314,469.09 = 59,855.91/x
  3. Step 3: Cross multiply
    209,613.57x = 314,469.09 × 59,855.91
  4. Step 4: Simplify right side
    209,613.57x = 18,822,833,548.82
  5. Step 5: Solve for x
    x = 18,822,833,548.82/209,613.57
  6. Step 6: Final answer
    x = 89,797.78

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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.