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Finding the Fourth Proportional to 92,665.62, 127,879.02 and 50,223.78

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Solution

The fourth proportional to 92,665.62, 127,879.02 and 50,223.78 is: 69,309.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,665.62 : 127,879.02 = 50,223.78 : x
  2. Step 2: Convert to fraction form
    92,665.62/127,879.02 = 50,223.78/x
  3. Step 3: Cross multiply
    92,665.62x = 127,879.02 × 50,223.78
  4. Step 4: Simplify right side
    92,665.62x = 6,422,567,767.10
  5. Step 5: Solve for x
    x = 6,422,567,767.10/92,665.62
  6. Step 6: Final answer
    x = 69,309.07

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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.