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Finding the Fourth Proportional to 104,783.64, 157,173.92 and 25,897.87

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Solution

The fourth proportional to 104,783.64, 157,173.92 and 25,897.87 is: 38,846.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,783.64 : 157,173.92 = 25,897.87 : x
  2. Step 2: Convert to fraction form
    104,783.64/157,173.92 = 25,897.87/x
  3. Step 3: Cross multiply
    104,783.64x = 157,173.92 × 25,897.87
  4. Step 4: Simplify right side
    104,783.64x = 4,070,469,747.55
  5. Step 5: Solve for x
    x = 4,070,469,747.55/104,783.64
  6. Step 6: Final answer
    x = 38,846.42

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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.