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Finding the Fourth Proportional to 307,422.75, 424,243.40 and 166,110.75

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Solution

The fourth proportional to 307,422.75, 424,243.40 and 166,110.75 is: 229,232.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,422.75 : 424,243.40 = 166,110.75 : x
  2. Step 2: Convert to fraction form
    307,422.75/424,243.40 = 166,110.75/x
  3. Step 3: Cross multiply
    307,422.75x = 424,243.40 × 166,110.75
  4. Step 4: Simplify right side
    307,422.75x = 70,471,388,526.00
  5. Step 5: Solve for x
    x = 70,471,388,526.00/307,422.75
  6. Step 6: Final answer
    x = 229,232.84

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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.