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Finding the Fourth Proportional to 74,059.56, 111,060.99 and 26,661.06

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Solution

The fourth proportional to 74,059.56, 111,060.99 and 26,661.06 is: 39,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,059.56 : 111,060.99 = 26,661.06 : x
  2. Step 2: Convert to fraction form
    74,059.56/111,060.99 = 26,661.06/x
  3. Step 3: Cross multiply
    74,059.56x = 111,060.99 × 26,661.06
  4. Step 4: Simplify right side
    74,059.56x = 2,961,003,718.05
  5. Step 5: Solve for x
    x = 2,961,003,718.05/74,059.56
  6. Step 6: Final answer
    x = 39,981.38

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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.