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Finding the Fourth Proportional to 68,655.60, 94,741.92 and 38,440.44

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Solution

The fourth proportional to 68,655.60, 94,741.92 and 38,440.44 is: 53,046.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,655.60 : 94,741.92 = 38,440.44 : x
  2. Step 2: Convert to fraction form
    68,655.60/94,741.92 = 38,440.44/x
  3. Step 3: Cross multiply
    68,655.60x = 94,741.92 × 38,440.44
  4. Step 4: Simplify right side
    68,655.60x = 3,641,921,091.24
  5. Step 5: Solve for x
    x = 3,641,921,091.24/68,655.60
  6. Step 6: Final answer
    x = 53,046.23

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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.