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Finding the Fourth Proportional to 365,745.65, 548,655.39 and 137,984.13

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Solution

The fourth proportional to 365,745.65, 548,655.39 and 137,984.13 is: 206,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,745.65 : 548,655.39 = 137,984.13 : x
  2. Step 2: Convert to fraction form
    365,745.65/548,655.39 = 137,984.13/x
  3. Step 3: Cross multiply
    365,745.65x = 548,655.39 × 137,984.13
  4. Step 4: Simplify right side
    365,745.65x = 75,705,736,658.96
  5. Step 5: Solve for x
    x = 75,705,736,658.96/365,745.65
  6. Step 6: Final answer
    x = 206,990.12

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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.