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Finding the Fourth Proportional to 203,169.51, 304,782.81 and 84,813.93

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Solution

The fourth proportional to 203,169.51, 304,782.81 and 84,813.93 is: 127,232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,169.51 : 304,782.81 = 84,813.93 : x
  2. Step 2: Convert to fraction form
    203,169.51/304,782.81 = 84,813.93/x
  3. Step 3: Cross multiply
    203,169.51x = 304,782.81 × 84,813.93
  4. Step 4: Simplify right side
    203,169.51x = 25,849,827,912.54
  5. Step 5: Solve for x
    x = 25,849,827,912.54/203,169.51
  6. Step 6: Final answer
    x = 127,232.81

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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.