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Finding the Fourth Proportional to 370,871.37, 511,802.78 and 201,105.49

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Solution

The fourth proportional to 370,871.37, 511,802.78 and 201,105.49 is: 277,525.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,871.37 : 511,802.78 = 201,105.49 : x
  2. Step 2: Convert to fraction form
    370,871.37/511,802.78 = 201,105.49/x
  3. Step 3: Cross multiply
    370,871.37x = 511,802.78 × 201,105.49
  4. Step 4: Simplify right side
    370,871.37x = 102,926,348,855.26
  5. Step 5: Solve for x
    x = 102,926,348,855.26/370,871.37
  6. Step 6: Final answer
    x = 277,525.73

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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.