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Finding the Fourth Proportional to 199,358.20, 275,115.18 and 118,826.20

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Solution

The fourth proportional to 199,358.20, 275,115.18 and 118,826.20 is: 163,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,358.20 : 275,115.18 = 118,826.20 : x
  2. Step 2: Convert to fraction form
    199,358.20/275,115.18 = 118,826.20/x
  3. Step 3: Cross multiply
    199,358.20x = 275,115.18 × 118,826.20
  4. Step 4: Simplify right side
    199,358.20x = 32,690,891,401.72
  5. Step 5: Solve for x
    x = 32,690,891,401.72/199,358.20
  6. Step 6: Final answer
    x = 163,980.67

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