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Finding the Fourth Proportional to 73,410.40, 110,040.36 and 49,720.42

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Solution

The fourth proportional to 73,410.40, 110,040.36 and 49,720.42 is: 74,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,410.40 : 110,040.36 = 49,720.42 : x
  2. Step 2: Convert to fraction form
    73,410.40/110,040.36 = 49,720.42/x
  3. Step 3: Cross multiply
    73,410.40x = 110,040.36 × 49,720.42
  4. Step 4: Simplify right side
    73,410.40x = 5,471,252,916.15
  5. Step 5: Solve for x
    x = 5,471,252,916.15/73,410.40
  6. Step 6: Final answer
    x = 74,529.67

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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.