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Finding the Fourth Proportional to 216,808.16, 298,996.49 and 186,170.85

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Solution

The fourth proportional to 216,808.16, 298,996.49 and 186,170.85 is: 256,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,808.16 : 298,996.49 = 186,170.85 : x
  2. Step 2: Convert to fraction form
    216,808.16/298,996.49 = 186,170.85/x
  3. Step 3: Cross multiply
    216,808.16x = 298,996.49 × 186,170.85
  4. Step 4: Simplify right side
    216,808.16x = 55,664,429,759.46
  5. Step 5: Solve for x
    x = 55,664,429,759.46/216,808.16
  6. Step 6: Final answer
    x = 256,745.09

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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.