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Finding the Fourth Proportional to 273,908.50, 410,862.75 and 74,228.87

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Solution

The fourth proportional to 273,908.50, 410,862.75 and 74,228.87 is: 111,343.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,908.50 : 410,862.75 = 74,228.87 : x
  2. Step 2: Convert to fraction form
    273,908.50/410,862.75 = 74,228.87/x
  3. Step 3: Cross multiply
    273,908.50x = 410,862.75 × 74,228.87
  4. Step 4: Simplify right side
    273,908.50x = 30,497,877,657.59
  5. Step 5: Solve for x
    x = 30,497,877,657.59/273,908.50
  6. Step 6: Final answer
    x = 111,343.31

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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.