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Finding the Fourth Proportional to 271,369.20, 406,980.90 and 93,930.60

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Solution

The fourth proportional to 271,369.20, 406,980.90 and 93,930.60 is: 140,870.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,369.20 : 406,980.90 = 93,930.60 : x
  2. Step 2: Convert to fraction form
    271,369.20/406,980.90 = 93,930.60/x
  3. Step 3: Cross multiply
    271,369.20x = 406,980.90 × 93,930.60
  4. Step 4: Simplify right side
    271,369.20x = 38,227,960,125.54
  5. Step 5: Solve for x
    x = 38,227,960,125.54/271,369.20
  6. Step 6: Final answer
    x = 140,870.67

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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.