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Finding the Fourth Proportional to 568,821.78, 853,373.04 and 169,461

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Solution

The fourth proportional to 568,821.78, 853,373.04 and 169,461 is: 254,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,821.78 : 853,373.04 = 169,461 : x
  2. Step 2: Convert to fraction form
    568,821.78/853,373.04 = 169,461/x
  3. Step 3: Cross multiply
    568,821.78x = 853,373.04 × 169,461
  4. Step 4: Simplify right side
    568,821.78x = 144,613,448,731.44
  5. Step 5: Solve for x
    x = 144,613,448,731.44/568,821.78
  6. Step 6: Final answer
    x = 254,233.32

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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.