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Finding the Fourth Proportional to 68,764.77, 94,903.25 and 38,558.25

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Solution

The fourth proportional to 68,764.77, 94,903.25 and 38,558.25 is: 53,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,764.77 : 94,903.25 = 38,558.25 : x
  2. Step 2: Convert to fraction form
    68,764.77/94,903.25 = 38,558.25/x
  3. Step 3: Cross multiply
    68,764.77x = 94,903.25 × 38,558.25
  4. Step 4: Simplify right side
    68,764.77x = 3,659,303,239.31
  5. Step 5: Solve for x
    x = 3,659,303,239.31/68,764.77
  6. Step 6: Final answer
    x = 53,214.80

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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.