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Finding the Fourth Proportional to 89,303.88, 133,954.20 and 75,353.16

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Solution

The fourth proportional to 89,303.88, 133,954.20 and 75,353.16 is: 113,028.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,303.88 : 133,954.20 = 75,353.16 : x
  2. Step 2: Convert to fraction form
    89,303.88/133,954.20 = 75,353.16/x
  3. Step 3: Cross multiply
    89,303.88x = 133,954.20 × 75,353.16
  4. Step 4: Simplify right side
    89,303.88x = 10,093,872,265.27
  5. Step 5: Solve for x
    x = 10,093,872,265.27/89,303.88
  6. Step 6: Final answer
    x = 113,028.37

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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.