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Finding the Fourth Proportional to 171,978.50, 237,352.22 and 103,995.97

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Solution

The fourth proportional to 171,978.50, 237,352.22 and 103,995.97 is: 143,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,978.50 : 237,352.22 = 103,995.97 : x
  2. Step 2: Convert to fraction form
    171,978.50/237,352.22 = 103,995.97/x
  3. Step 3: Cross multiply
    171,978.50x = 237,352.22 × 103,995.97
  4. Step 4: Simplify right side
    171,978.50x = 24,683,672,643.81
  5. Step 5: Solve for x
    x = 24,683,672,643.81/171,978.50
  6. Step 6: Final answer
    x = 143,527.67

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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.