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Finding the Fourth Proportional to 111,744.24, 154,207.04 and 61,443.24

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Solution

The fourth proportional to 111,744.24, 154,207.04 and 61,443.24 is: 84,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,744.24 : 154,207.04 = 61,443.24 : x
  2. Step 2: Convert to fraction form
    111,744.24/154,207.04 = 61,443.24/x
  3. Step 3: Cross multiply
    111,744.24x = 154,207.04 × 61,443.24
  4. Step 4: Simplify right side
    111,744.24x = 9,474,980,168.41
  5. Step 5: Solve for x
    x = 9,474,980,168.41/111,744.24
  6. Step 6: Final answer
    x = 84,791.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.