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Finding the Fourth Proportional to 54,040.50, 81,061.11 and 17,104.50

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Solution

The fourth proportional to 54,040.50, 81,061.11 and 17,104.50 is: 25,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,040.50 : 81,061.11 = 17,104.50 : x
  2. Step 2: Convert to fraction form
    54,040.50/81,061.11 = 17,104.50/x
  3. Step 3: Cross multiply
    54,040.50x = 81,061.11 × 17,104.50
  4. Step 4: Simplify right side
    54,040.50x = 1,386,509,756.00
  5. Step 5: Solve for x
    x = 1,386,509,756.00/54,040.50
  6. Step 6: Final answer
    x = 25,656.86

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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.