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Finding the Fourth Proportional to 68,481.69, 94,455.69 and 48,068.32

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Solution

The fourth proportional to 68,481.69, 94,455.69 and 48,068.32 is: 66,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,481.69 : 94,455.69 = 48,068.32 : x
  2. Step 2: Convert to fraction form
    68,481.69/94,455.69 = 48,068.32/x
  3. Step 3: Cross multiply
    68,481.69x = 94,455.69 × 48,068.32
  4. Step 4: Simplify right side
    68,481.69x = 4,540,326,897.51
  5. Step 5: Solve for x
    x = 4,540,326,897.51/68,481.69
  6. Step 6: Final answer
    x = 66,299.87

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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.