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Finding the Fourth Proportional to 303,676.04, 455,790.54 and 161,640.66

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Solution

The fourth proportional to 303,676.04, 455,790.54 and 161,640.66 is: 242,608.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,676.04 : 455,790.54 = 161,640.66 : x
  2. Step 2: Convert to fraction form
    303,676.04/455,790.54 = 161,640.66/x
  3. Step 3: Cross multiply
    303,676.04x = 455,790.54 × 161,640.66
  4. Step 4: Simplify right side
    303,676.04x = 73,674,283,707.36
  5. Step 5: Solve for x
    x = 73,674,283,707.36/303,676.04
  6. Step 6: Final answer
    x = 242,608.15

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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.