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Finding the Fourth Proportional to 303,661.71, 455,768.91 and 161,626.19

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Solution

The fourth proportional to 303,661.71, 455,768.91 and 161,626.19 is: 242,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,661.71 : 455,768.91 = 161,626.19 : x
  2. Step 2: Convert to fraction form
    303,661.71/455,768.91 = 161,626.19/x
  3. Step 3: Cross multiply
    303,661.71x = 455,768.91 × 161,626.19
  4. Step 4: Simplify right side
    303,661.71x = 73,664,190,164.91
  5. Step 5: Solve for x
    x = 73,664,190,164.91/303,661.71
  6. Step 6: Final answer
    x = 242,586.36

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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.