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Finding the Fourth Proportional to 371,056.56, 512,057.82 and 201,290.70

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Solution

The fourth proportional to 371,056.56, 512,057.82 and 201,290.70 is: 277,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,056.56 : 512,057.82 = 201,290.70 : x
  2. Step 2: Convert to fraction form
    371,056.56/512,057.82 = 201,290.70/x
  3. Step 3: Cross multiply
    371,056.56x = 512,057.82 × 201,290.70
  4. Step 4: Simplify right side
    371,056.56x = 103,072,477,028.27
  5. Step 5: Solve for x
    x = 103,072,477,028.27/371,056.56
  6. Step 6: Final answer
    x = 277,781.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.