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Finding the Fourth Proportional to 561,841.66, 842,879.13 and 187,854.94

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Solution

The fourth proportional to 561,841.66, 842,879.13 and 187,854.94 is: 281,821.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,841.66 : 842,879.13 = 187,854.94 : x
  2. Step 2: Convert to fraction form
    561,841.66/842,879.13 = 187,854.94/x
  3. Step 3: Cross multiply
    561,841.66x = 842,879.13 × 187,854.94
  4. Step 4: Simplify right side
    561,841.66x = 158,339,008,393.40
  5. Step 5: Solve for x
    x = 158,339,008,393.40/561,841.66
  6. Step 6: Final answer
    x = 281,821.41

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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.