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Finding the Fourth Proportional to 253,990.67, 350,522.84 and 140,813.42

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Solution

The fourth proportional to 253,990.67, 350,522.84 and 140,813.42 is: 194,331.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,990.67 : 350,522.84 = 140,813.42 : x
  2. Step 2: Convert to fraction form
    253,990.67/350,522.84 = 140,813.42/x
  3. Step 3: Cross multiply
    253,990.67x = 350,522.84 × 140,813.42
  4. Step 4: Simplify right side
    253,990.67x = 49,358,317,431.83
  5. Step 5: Solve for x
    x = 49,358,317,431.83/253,990.67
  6. Step 6: Final answer
    x = 194,331.23

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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.