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Finding the Fourth Proportional to 111,558.72, 167,302.56 and 36,661.56

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Solution

The fourth proportional to 111,558.72, 167,302.56 and 36,661.56 is: 54,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,558.72 : 167,302.56 = 36,661.56 : x
  2. Step 2: Convert to fraction form
    111,558.72/167,302.56 = 36,661.56/x
  3. Step 3: Cross multiply
    111,558.72x = 167,302.56 × 36,661.56
  4. Step 4: Simplify right side
    111,558.72x = 6,133,572,841.59
  5. Step 5: Solve for x
    x = 6,133,572,841.59/111,558.72
  6. Step 6: Final answer
    x = 54,980.67

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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.