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Finding the Fourth Proportional to 92,656.64, 138,996.76 and 25,190.08

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Solution

The fourth proportional to 92,656.64, 138,996.76 and 25,190.08 is: 37,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,656.64 : 138,996.76 = 25,190.08 : x
  2. Step 2: Convert to fraction form
    92,656.64/138,996.76 = 25,190.08/x
  3. Step 3: Cross multiply
    92,656.64x = 138,996.76 × 25,190.08
  4. Step 4: Simplify right side
    92,656.64x = 3,501,339,504.14
  5. Step 5: Solve for x
    x = 3,501,339,504.14/92,656.64
  6. Step 6: Final answer
    x = 37,788.33

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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.