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Finding the Fourth Proportional to 216,751.76, 298,452.82 and 189,743.12

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Solution

The fourth proportional to 216,751.76, 298,452.82 and 189,743.12 is: 261,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,751.76 : 298,452.82 = 189,743.12 : x
  2. Step 2: Convert to fraction form
    216,751.76/298,452.82 = 189,743.12/x
  3. Step 3: Cross multiply
    216,751.76x = 298,452.82 × 189,743.12
  4. Step 4: Simplify right side
    216,751.76x = 56,629,369,239.60
  5. Step 5: Solve for x
    x = 56,629,369,239.60/216,751.76
  6. Step 6: Final answer
    x = 261,263.71

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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.