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Finding the Fourth Proportional to 308,661.16, 425,857.94 and 201,192.04

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Solution

The fourth proportional to 308,661.16, 425,857.94 and 201,192.04 is: 277,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,661.16 : 425,857.94 = 201,192.04 : x
  2. Step 2: Convert to fraction form
    308,661.16/425,857.94 = 201,192.04/x
  3. Step 3: Cross multiply
    308,661.16x = 425,857.94 × 201,192.04
  4. Step 4: Simplify right side
    308,661.16x = 85,679,227,698.80
  5. Step 5: Solve for x
    x = 85,679,227,698.80/308,661.16
  6. Step 6: Final answer
    x = 277,583.44

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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.