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Finding the Fourth Proportional to 303,654.20, 455,481.30 and 93,302.60

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Solution

The fourth proportional to 303,654.20, 455,481.30 and 93,302.60 is: 139,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,654.20 : 455,481.30 = 93,302.60 : x
  2. Step 2: Convert to fraction form
    303,654.20/455,481.30 = 93,302.60/x
  3. Step 3: Cross multiply
    303,654.20x = 455,481.30 × 93,302.60
  4. Step 4: Simplify right side
    303,654.20x = 42,497,589,541.38
  5. Step 5: Solve for x
    x = 42,497,589,541.38/303,654.20
  6. Step 6: Final answer
    x = 139,953.90

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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.