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Finding the Fourth Proportional to 263,637.47, 395,474.49 and 105,865.94

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Solution

The fourth proportional to 263,637.47, 395,474.49 and 105,865.94 is: 158,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,637.47 : 395,474.49 = 105,865.94 : x
  2. Step 2: Convert to fraction form
    263,637.47/395,474.49 = 105,865.94/x
  3. Step 3: Cross multiply
    263,637.47x = 395,474.49 × 105,865.94
  4. Step 4: Simplify right side
    263,637.47x = 41,867,276,652.50
  5. Step 5: Solve for x
    x = 41,867,276,652.50/263,637.47
  6. Step 6: Final answer
    x = 158,806.25

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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.