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Finding the Fourth Proportional to 303,341.80, 455,109.90 and 203,614.60

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Solution

The fourth proportional to 303,341.80, 455,109.90 and 203,614.60 is: 305,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,341.80 : 455,109.90 = 203,614.60 : x
  2. Step 2: Convert to fraction form
    303,341.80/455,109.90 = 203,614.60/x
  3. Step 3: Cross multiply
    303,341.80x = 455,109.90 × 203,614.60
  4. Step 4: Simplify right side
    303,341.80x = 92,667,020,244.54
  5. Step 5: Solve for x
    x = 92,667,020,244.54/303,341.80
  6. Step 6: Final answer
    x = 305,487.14

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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.