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Finding the Fourth Proportional to 89,075.66, 133,608.81 and 29,912.54

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Solution

The fourth proportional to 89,075.66, 133,608.81 and 29,912.54 is: 44,867.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,075.66 : 133,608.81 = 29,912.54 : x
  2. Step 2: Convert to fraction form
    89,075.66/133,608.81 = 29,912.54/x
  3. Step 3: Cross multiply
    89,075.66x = 133,608.81 × 29,912.54
  4. Step 4: Simplify right side
    89,075.66x = 3,996,578,873.48
  5. Step 5: Solve for x
    x = 3,996,578,873.48/89,075.66
  6. Step 6: Final answer
    x = 44,867.24

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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.