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Finding the Fourth Proportional to 187,818.89, 281,603.72 and 61,414.83

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Solution

The fourth proportional to 187,818.89, 281,603.72 and 61,414.83 is: 92,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,818.89 : 281,603.72 = 61,414.83 : x
  2. Step 2: Convert to fraction form
    187,818.89/281,603.72 = 61,414.83/x
  3. Step 3: Cross multiply
    187,818.89x = 281,603.72 × 61,414.83
  4. Step 4: Simplify right side
    187,818.89x = 17,294,644,744.70
  5. Step 5: Solve for x
    x = 17,294,644,744.70/187,818.89
  6. Step 6: Final answer
    x = 92,081.50

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1.5x scale

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.