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Finding the Fourth Proportional to 262,908.36, 394,428.89 and 73,368.57

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Solution

The fourth proportional to 262,908.36, 394,428.89 and 73,368.57 is: 110,071.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,908.36 : 394,428.89 = 73,368.57 : x
  2. Step 2: Convert to fraction form
    262,908.36/394,428.89 = 73,368.57/x
  3. Step 3: Cross multiply
    262,908.36x = 394,428.89 × 73,368.57
  4. Step 4: Simplify right side
    262,908.36x = 28,938,683,259.14
  5. Step 5: Solve for x
    x = 28,938,683,259.14/262,908.36
  6. Step 6: Final answer
    x = 110,071.37

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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.