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Finding the Fourth Proportional to 303,853.28, 455,913.54 and 161,665.11

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Solution

The fourth proportional to 303,853.28, 455,913.54 and 161,665.11 is: 242,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,853.28 : 455,913.54 = 161,665.11 : x
  2. Step 2: Convert to fraction form
    303,853.28/455,913.54 = 161,665.11/x
  3. Step 3: Cross multiply
    303,853.28x = 455,913.54 × 161,665.11
  4. Step 4: Simplify right side
    303,853.28x = 73,705,312,594.59
  5. Step 5: Solve for x
    x = 73,705,312,594.59/303,853.28
  6. Step 6: Final answer
    x = 242,568.76

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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.