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Finding the Fourth Proportional to 206,920.07, 310,380.10 and 59,176.07

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Solution

The fourth proportional to 206,920.07, 310,380.10 and 59,176.07 is: 88,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,920.07 : 310,380.10 = 59,176.07 : x
  2. Step 2: Convert to fraction form
    206,920.07/310,380.10 = 59,176.07/x
  3. Step 3: Cross multiply
    206,920.07x = 310,380.10 × 59,176.07
  4. Step 4: Simplify right side
    206,920.07x = 18,367,072,676.43
  5. Step 5: Solve for x
    x = 18,367,072,676.43/206,920.07
  6. Step 6: Final answer
    x = 88,764.10

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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.