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Finding the Fourth Proportional to 92,115.90, 138,173.92 and 25,556.09

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Solution

The fourth proportional to 92,115.90, 138,173.92 and 25,556.09 is: 38,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,115.90 : 138,173.92 = 25,556.09 : x
  2. Step 2: Convert to fraction form
    92,115.90/138,173.92 = 25,556.09/x
  3. Step 3: Cross multiply
    92,115.90x = 138,173.92 × 25,556.09
  4. Step 4: Simplify right side
    92,115.90x = 3,531,185,157.64
  5. Step 5: Solve for x
    x = 3,531,185,157.64/92,115.90
  6. Step 6: Final answer
    x = 38,334.15

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1.5x scale

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.