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Finding the Fourth Proportional to 104,393.91, 144,062.06 and 61,378.26

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Solution

The fourth proportional to 104,393.91, 144,062.06 and 61,378.26 is: 84,701.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,393.91 : 144,062.06 = 61,378.26 : x
  2. Step 2: Convert to fraction form
    104,393.91/144,062.06 = 61,378.26/x
  3. Step 3: Cross multiply
    104,393.91x = 144,062.06 × 61,378.26
  4. Step 4: Simplify right side
    104,393.91x = 8,842,278,072.94
  5. Step 5: Solve for x
    x = 8,842,278,072.94/104,393.91
  6. Step 6: Final answer
    x = 84,701.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.