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Finding the Fourth Proportional to 270,611.22, 405,940.68 and 70,930.92

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Solution

The fourth proportional to 270,611.22, 405,940.68 and 70,930.92 is: 106,402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,611.22 : 405,940.68 = 70,930.92 : x
  2. Step 2: Convert to fraction form
    270,611.22/405,940.68 = 70,930.92/x
  3. Step 3: Cross multiply
    270,611.22x = 405,940.68 × 70,930.92
  4. Step 4: Simplify right side
    270,611.22x = 28,793,745,897.83
  5. Step 5: Solve for x
    x = 28,793,745,897.83/270,611.22
  6. Step 6: Final answer
    x = 106,402.63

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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.