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Finding the Fourth Proportional to 610,005.66, 915,067.62 and 189,168.54

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Solution

The fourth proportional to 610,005.66, 915,067.62 and 189,168.54 is: 283,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,005.66 : 915,067.62 = 189,168.54 : x
  2. Step 2: Convert to fraction form
    610,005.66/915,067.62 = 189,168.54/x
  3. Step 3: Cross multiply
    610,005.66x = 915,067.62 × 189,168.54
  4. Step 4: Simplify right side
    610,005.66x = 173,102,005,676.68
  5. Step 5: Solve for x
    x = 173,102,005,676.68/610,005.66
  6. Step 6: Final answer
    x = 283,771.15

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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.