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Finding the Fourth Proportional to 568,911.47, 853,081.49 and 189,697.95

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Solution

The fourth proportional to 568,911.47, 853,081.49 and 189,697.95 is: 284,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,911.47 : 853,081.49 = 189,697.95 : x
  2. Step 2: Convert to fraction form
    568,911.47/853,081.49 = 189,697.95/x
  3. Step 3: Cross multiply
    568,911.47x = 853,081.49 × 189,697.95
  4. Step 4: Simplify right side
    568,911.47x = 161,827,808,887.46
  5. Step 5: Solve for x
    x = 161,827,808,887.46/568,911.47
  6. Step 6: Final answer
    x = 284,451.66

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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.