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Finding the Fourth Proportional to 79,361.78, 119,042.66 and 61,844.72

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Solution

The fourth proportional to 79,361.78, 119,042.66 and 61,844.72 is: 92,767.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,361.78 : 119,042.66 = 61,844.72 : x
  2. Step 2: Convert to fraction form
    79,361.78/119,042.66 = 61,844.72/x
  3. Step 3: Cross multiply
    79,361.78x = 119,042.66 × 61,844.72
  4. Step 4: Simplify right side
    79,361.78x = 7,362,159,535.15
  5. Step 5: Solve for x
    x = 7,362,159,535.15/79,361.78
  6. Step 6: Final answer
    x = 92,767.07

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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.