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Finding the Fourth Proportional to 371,513.98, 557,467.80 and 161,299.54

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Solution

The fourth proportional to 371,513.98, 557,467.80 and 161,299.54 is: 242,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,513.98 : 557,467.80 = 161,299.54 : x
  2. Step 2: Convert to fraction form
    371,513.98/557,467.80 = 161,299.54/x
  3. Step 3: Cross multiply
    371,513.98x = 557,467.80 × 161,299.54
  4. Step 4: Simplify right side
    371,513.98x = 89,919,299,704.81
  5. Step 5: Solve for x
    x = 89,919,299,704.81/371,513.98
  6. Step 6: Final answer
    x = 242,034.77

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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.