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Finding the Fourth Proportional to 78,662.08, 108,593.92 and 53,302.48

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Solution

The fourth proportional to 78,662.08, 108,593.92 and 53,302.48 is: 73,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,662.08 : 108,593.92 = 53,302.48 : x
  2. Step 2: Convert to fraction form
    78,662.08/108,593.92 = 53,302.48/x
  3. Step 3: Cross multiply
    78,662.08x = 108,593.92 × 53,302.48
  4. Step 4: Simplify right side
    78,662.08x = 5,788,325,248.92
  5. Step 5: Solve for x
    x = 5,788,325,248.92/78,662.08
  6. Step 6: Final answer
    x = 73,584.70

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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.