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Finding the Fourth Proportional to 68,016.46, 93,835.74 and 39,330.82

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Solution

The fourth proportional to 68,016.46, 93,835.74 and 39,330.82 is: 54,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,016.46 : 93,835.74 = 39,330.82 : x
  2. Step 2: Convert to fraction form
    68,016.46/93,835.74 = 39,330.82/x
  3. Step 3: Cross multiply
    68,016.46x = 93,835.74 × 39,330.82
  4. Step 4: Simplify right side
    68,016.46x = 3,690,636,599.51
  5. Step 5: Solve for x
    x = 3,690,636,599.51/68,016.46
  6. Step 6: Final answer
    x = 54,260.93

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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.