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Finding the Fourth Proportional to 301,326.28, 451,976.46 and 90,957.94

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Solution

The fourth proportional to 301,326.28, 451,976.46 and 90,957.94 is: 136,432.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,326.28 : 451,976.46 = 90,957.94 : x
  2. Step 2: Convert to fraction form
    301,326.28/451,976.46 = 90,957.94/x
  3. Step 3: Cross multiply
    301,326.28x = 451,976.46 × 90,957.94
  4. Step 4: Simplify right side
    301,326.28x = 41,110,846,259.06
  5. Step 5: Solve for x
    x = 41,110,846,259.06/301,326.28
  6. Step 6: Final answer
    x = 136,432.99

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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.