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Finding the Fourth Proportional to 216,057.87, 298,186.79 and 125,394.30

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Solution

The fourth proportional to 216,057.87, 298,186.79 and 125,394.30 is: 173,059.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,057.87 : 298,186.79 = 125,394.30 : x
  2. Step 2: Convert to fraction form
    216,057.87/298,186.79 = 125,394.30/x
  3. Step 3: Cross multiply
    216,057.87x = 298,186.79 × 125,394.30
  4. Step 4: Simplify right side
    216,057.87x = 37,390,923,174.33
  5. Step 5: Solve for x
    x = 37,390,923,174.33/216,057.87
  6. Step 6: Final answer
    x = 173,059.76

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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.