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Finding the Fourth Proportional to 74,472.79, 111,674.09 and 27,054.45

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Solution

The fourth proportional to 74,472.79, 111,674.09 and 27,054.45 is: 40,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,472.79 : 111,674.09 = 27,054.45 : x
  2. Step 2: Convert to fraction form
    74,472.79/111,674.09 = 27,054.45/x
  3. Step 3: Cross multiply
    74,472.79x = 111,674.09 × 27,054.45
  4. Step 4: Simplify right side
    74,472.79x = 3,021,280,458.19
  5. Step 5: Solve for x
    x = 3,021,280,458.19/74,472.79
  6. Step 6: Final answer
    x = 40,568.92

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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.