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Finding the Fourth Proportional to 225,653.96, 338,393.46 and 120,415.52

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Solution

The fourth proportional to 225,653.96, 338,393.46 and 120,415.52 is: 180,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,653.96 : 338,393.46 = 120,415.52 : x
  2. Step 2: Convert to fraction form
    225,653.96/338,393.46 = 120,415.52/x
  3. Step 3: Cross multiply
    225,653.96x = 338,393.46 × 120,415.52
  4. Step 4: Simplify right side
    225,653.96x = 40,747,824,450.50
  5. Step 5: Solve for x
    x = 40,747,824,450.50/225,653.96
  6. Step 6: Final answer
    x = 180,576.60

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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.