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Finding the Fourth Proportional to 207,655.38, 311,555.43 and 65,522.61

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Solution

The fourth proportional to 207,655.38, 311,555.43 and 65,522.61 is: 98,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,655.38 : 311,555.43 = 65,522.61 : x
  2. Step 2: Convert to fraction form
    207,655.38/311,555.43 = 65,522.61/x
  3. Step 3: Cross multiply
    207,655.38x = 311,555.43 × 65,522.61
  4. Step 4: Simplify right side
    207,655.38x = 20,413,924,933.27
  5. Step 5: Solve for x
    x = 20,413,924,933.27/207,655.38
  6. Step 6: Final answer
    x = 98,306.75

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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.