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Finding the Fourth Proportional to 263,305.50, 394,721.16 and 94,707.32

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Solution

The fourth proportional to 263,305.50, 394,721.16 and 94,707.32 is: 141,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,305.50 : 394,721.16 = 94,707.32 : x
  2. Step 2: Convert to fraction form
    263,305.50/394,721.16 = 94,707.32/x
  3. Step 3: Cross multiply
    263,305.50x = 394,721.16 × 94,707.32
  4. Step 4: Simplify right side
    263,305.50x = 37,382,983,210.89
  5. Step 5: Solve for x
    x = 37,382,983,210.89/263,305.50
  6. Step 6: Final answer
    x = 141,975.70

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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.