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Finding the Fourth Proportional to 321,177.90, 481,653.45 and 110,766.90

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Solution

The fourth proportional to 321,177.90, 481,653.45 and 110,766.90 is: 166,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,177.90 : 481,653.45 = 110,766.90 : x
  2. Step 2: Convert to fraction form
    321,177.90/481,653.45 = 110,766.90/x
  3. Step 3: Cross multiply
    321,177.90x = 481,653.45 × 110,766.90
  4. Step 4: Simplify right side
    321,177.90x = 53,351,259,530.81
  5. Step 5: Solve for x
    x = 53,351,259,530.81/321,177.90
  6. Step 6: Final answer
    x = 166,111.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.