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Finding the Fourth Proportional to 216,272.28, 298,412.46 and 120,764.28

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Solution

The fourth proportional to 216,272.28, 298,412.46 and 120,764.28 is: 166,630.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,272.28 : 298,412.46 = 120,764.28 : x
  2. Step 2: Convert to fraction form
    216,272.28/298,412.46 = 120,764.28/x
  3. Step 3: Cross multiply
    216,272.28x = 298,412.46 × 120,764.28
  4. Step 4: Simplify right side
    216,272.28x = 36,037,565,874.93
  5. Step 5: Solve for x
    x = 36,037,565,874.93/216,272.28
  6. Step 6: Final answer
    x = 166,630.54

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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.