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Finding the Fourth Proportional to 187,807, 281,651.02 and 61,418.04

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Solution

The fourth proportional to 187,807, 281,651.02 and 61,418.04 is: 92,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,807 : 281,651.02 = 61,418.04 : x
  2. Step 2: Convert to fraction form
    187,807/281,651.02 = 61,418.04/x
  3. Step 3: Cross multiply
    187,807x = 281,651.02 × 61,418.04
  4. Step 4: Simplify right side
    187,807x = 17,298,453,612.40
  5. Step 5: Solve for x
    x = 17,298,453,612.40/187,807
  6. Step 6: Final answer
    x = 92,107.61

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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.