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Finding the Fourth Proportional to 78,558.00, 117,855.45 and 25,967.48

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Solution

The fourth proportional to 78,558.00, 117,855.45 and 25,967.48 is: 38,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558.00 : 117,855.45 = 25,967.48 : x
  2. Step 2: Convert to fraction form
    78,558.00/117,855.45 = 25,967.48/x
  3. Step 3: Cross multiply
    78,558.00x = 117,855.45 × 25,967.48
  4. Step 4: Simplify right side
    78,558.00x = 3,060,408,910.93
  5. Step 5: Solve for x
    x = 3,060,408,910.93/78,558.00
  6. Step 6: Final answer
    x = 38,957.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.