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Finding the Fourth Proportional to 273,938.81, 410,908.23 and 74,259.19

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Solution

The fourth proportional to 273,938.81, 410,908.23 and 74,259.19 is: 111,388.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,938.81 : 410,908.23 = 74,259.19 : x
  2. Step 2: Convert to fraction form
    273,938.81/410,908.23 = 74,259.19/x
  3. Step 3: Cross multiply
    273,938.81x = 410,908.23 × 74,259.19
  4. Step 4: Simplify right side
    273,938.81x = 30,513,711,296.86
  5. Step 5: Solve for x
    x = 30,513,711,296.86/273,938.81
  6. Step 6: Final answer
    x = 111,388.78

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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.