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Finding the Fourth Proportional to 132,778.78, 199,227.03 and 69,583.88

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Solution

The fourth proportional to 132,778.78, 199,227.03 and 69,583.88 is: 104,406.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,778.78 : 199,227.03 = 69,583.88 : x
  2. Step 2: Convert to fraction form
    132,778.78/199,227.03 = 69,583.88/x
  3. Step 3: Cross multiply
    132,778.78x = 199,227.03 × 69,583.88
  4. Step 4: Simplify right side
    132,778.78x = 13,862,989,748.28
  5. Step 5: Solve for x
    x = 13,862,989,748.28/132,778.78
  6. Step 6: Final answer
    x = 104,406.67

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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.