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Finding the Fourth Proportional to 141,863.06, 212,845.40 and 60,776.06

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Solution

The fourth proportional to 141,863.06, 212,845.40 and 60,776.06 is: 91,185.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,863.06 : 212,845.40 = 60,776.06 : x
  2. Step 2: Convert to fraction form
    141,863.06/212,845.40 = 60,776.06/x
  3. Step 3: Cross multiply
    141,863.06x = 212,845.40 × 60,776.06
  4. Step 4: Simplify right side
    141,863.06x = 12,935,904,801.12
  5. Step 5: Solve for x
    x = 12,935,904,801.12/141,863.06
  6. Step 6: Final answer
    x = 91,185.86

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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.