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Finding the Fourth Proportional to 543,793.23, 815,690.16 and 206,756.01

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Solution

The fourth proportional to 543,793.23, 815,690.16 and 206,756.01 is: 310,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,793.23 : 815,690.16 = 206,756.01 : x
  2. Step 2: Convert to fraction form
    543,793.23/815,690.16 = 206,756.01/x
  3. Step 3: Cross multiply
    543,793.23x = 815,690.16 × 206,756.01
  4. Step 4: Simplify right side
    543,793.23x = 168,648,842,877.86
  5. Step 5: Solve for x
    x = 168,648,842,877.86/543,793.23
  6. Step 6: Final answer
    x = 310,134.13

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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.