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Finding the Fourth Proportional to 187,909.83, 281,857.46 and 61,559.55

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Solution

The fourth proportional to 187,909.83, 281,857.46 and 61,559.55 is: 92,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,909.83 : 281,857.46 = 61,559.55 : x
  2. Step 2: Convert to fraction form
    187,909.83/281,857.46 = 61,559.55/x
  3. Step 3: Cross multiply
    187,909.83x = 281,857.46 × 61,559.55
  4. Step 4: Simplify right side
    187,909.83x = 17,351,018,093.95
  5. Step 5: Solve for x
    x = 17,351,018,093.95/187,909.83
  6. Step 6: Final answer
    x = 92,336.94

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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.