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Finding the Fourth Proportional to 61,696.40, 85,146.06 and 34,845.44

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Solution

The fourth proportional to 61,696.40, 85,146.06 and 34,845.44 is: 48,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,696.40 : 85,146.06 = 34,845.44 : x
  2. Step 2: Convert to fraction form
    61,696.40/85,146.06 = 34,845.44/x
  3. Step 3: Cross multiply
    61,696.40x = 85,146.06 × 34,845.44
  4. Step 4: Simplify right side
    61,696.40x = 2,966,951,924.97
  5. Step 5: Solve for x
    x = 2,966,951,924.97/61,696.40
  6. Step 6: Final answer
    x = 48,089.55

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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.