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Finding the Fourth Proportional to 264,670.80, 397,121.40 and 133,342.80

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Solution

The fourth proportional to 264,670.80, 397,121.40 and 133,342.80 is: 200,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,670.80 : 397,121.40 = 133,342.80 : x
  2. Step 2: Convert to fraction form
    264,670.80/397,121.40 = 133,342.80/x
  3. Step 3: Cross multiply
    264,670.80x = 397,121.40 × 133,342.80
  4. Step 4: Simplify right side
    264,670.80x = 52,953,279,415.92
  5. Step 5: Solve for x
    x = 52,953,279,415.92/264,670.80
  6. Step 6: Final answer
    x = 200,072.24

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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.