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Finding the Fourth Proportional to 167,669.28, 251,497.28 and 56,861.28

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Solution

The fourth proportional to 167,669.28, 251,497.28 and 56,861.28 is: 85,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,669.28 : 251,497.28 = 56,861.28 : x
  2. Step 2: Convert to fraction form
    167,669.28/251,497.28 = 56,861.28/x
  3. Step 3: Cross multiply
    167,669.28x = 251,497.28 × 56,861.28
  4. Step 4: Simplify right side
    167,669.28x = 14,300,457,257.32
  5. Step 5: Solve for x
    x = 14,300,457,257.32/167,669.28
  6. Step 6: Final answer
    x = 85,289.67

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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.