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Finding the Fourth Proportional to 216,371.98, 298,556.85 and 120,879.46

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Solution

The fourth proportional to 216,371.98, 298,556.85 and 120,879.46 is: 166,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,371.98 : 298,556.85 = 120,879.46 : x
  2. Step 2: Convert to fraction form
    216,371.98/298,556.85 = 120,879.46/x
  3. Step 3: Cross multiply
    216,371.98x = 298,556.85 × 120,879.46
  4. Step 4: Simplify right side
    216,371.98x = 36,089,390,807.30
  5. Step 5: Solve for x
    x = 36,089,390,807.30/216,371.98
  6. Step 6: Final answer
    x = 166,793.27

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1.5x scale

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.