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Finding the Fourth Proportional to 92,575.77, 127,659 and 79,191.33

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Solution

The fourth proportional to 92,575.77, 127,659 and 79,191.33 is: 109,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,575.77 : 127,659 = 79,191.33 : x
  2. Step 2: Convert to fraction form
    92,575.77/127,659 = 79,191.33/x
  3. Step 3: Cross multiply
    92,575.77x = 127,659 × 79,191.33
  4. Step 4: Simplify right side
    92,575.77x = 10,109,485,996.47
  5. Step 5: Solve for x
    x = 10,109,485,996.47/92,575.77
  6. Step 6: Final answer
    x = 109,202.29

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1.5x scale

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.