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Finding the Fourth Proportional to 92,960.91, 128,287.41 and 50,519.46

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Solution

The fourth proportional to 92,960.91, 128,287.41 and 50,519.46 is: 69,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,960.91 : 128,287.41 = 50,519.46 : x
  2. Step 2: Convert to fraction form
    92,960.91/128,287.41 = 50,519.46/x
  3. Step 3: Cross multiply
    92,960.91x = 128,287.41 × 50,519.46
  4. Step 4: Simplify right side
    92,960.91x = 6,481,010,678.00
  5. Step 5: Solve for x
    x = 6,481,010,678.00/92,960.91
  6. Step 6: Final answer
    x = 69,717.59

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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.