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Finding the Fourth Proportional to 303,066.20, 455,583.45 and 214,930.10

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Solution

The fourth proportional to 303,066.20, 455,583.45 and 214,930.10 is: 323,093.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,066.20 : 455,583.45 = 214,930.10 : x
  2. Step 2: Convert to fraction form
    303,066.20/455,583.45 = 214,930.10/x
  3. Step 3: Cross multiply
    303,066.20x = 455,583.45 × 214,930.10
  4. Step 4: Simplify right side
    303,066.20x = 97,918,596,466.85
  5. Step 5: Solve for x
    x = 97,918,596,466.85/303,066.20
  6. Step 6: Final answer
    x = 323,093.09

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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.