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Finding the Fourth Proportional to 201,061.04, 277,453.41 and 115,021.73

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Solution

The fourth proportional to 201,061.04, 277,453.41 and 115,021.73 is: 158,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,061.04 : 277,453.41 = 115,021.73 : x
  2. Step 2: Convert to fraction form
    201,061.04/277,453.41 = 115,021.73/x
  3. Step 3: Cross multiply
    201,061.04x = 277,453.41 × 115,021.73
  4. Step 4: Simplify right side
    201,061.04x = 31,913,171,212.60
  5. Step 5: Solve for x
    x = 31,913,171,212.60/201,061.04
  6. Step 6: Final answer
    x = 158,723.79

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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.