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Finding the Fourth Proportional to 371,557.72, 557,336.58 and 161,191

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Solution

The fourth proportional to 371,557.72, 557,336.58 and 161,191 is: 241,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,557.72 : 557,336.58 = 161,191 : x
  2. Step 2: Convert to fraction form
    371,557.72/557,336.58 = 161,191/x
  3. Step 3: Cross multiply
    371,557.72x = 557,336.58 × 161,191
  4. Step 4: Simplify right side
    371,557.72x = 89,837,640,666.78
  5. Step 5: Solve for x
    x = 89,837,640,666.78/371,557.72
  6. Step 6: Final answer
    x = 241,786.50

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Similar ratio
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1.5x scale

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.