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Finding the Fourth Proportional to 92,960.36, 128,305.60 and 61,132.24

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Solution

The fourth proportional to 92,960.36, 128,305.60 and 61,132.24 is: 84,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,960.36 : 128,305.60 = 61,132.24 : x
  2. Step 2: Convert to fraction form
    92,960.36/128,305.60 = 61,132.24/x
  3. Step 3: Cross multiply
    92,960.36x = 128,305.60 × 61,132.24
  4. Step 4: Simplify right side
    92,960.36x = 7,843,608,732.54
  5. Step 5: Solve for x
    x = 7,843,608,732.54/92,960.36
  6. Step 6: Final answer
    x = 84,375.84

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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.