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Finding the Fourth Proportional to 222,643.63, 333,763.02 and 115,902.19

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Solution

The fourth proportional to 222,643.63, 333,763.02 and 115,902.19 is: 173,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,643.63 : 333,763.02 = 115,902.19 : x
  2. Step 2: Convert to fraction form
    222,643.63/333,763.02 = 115,902.19/x
  3. Step 3: Cross multiply
    222,643.63x = 333,763.02 × 115,902.19
  4. Step 4: Simplify right side
    222,643.63x = 38,683,864,959.01
  5. Step 5: Solve for x
    x = 38,683,864,959.01/222,643.63
  6. Step 6: Final answer
    x = 173,747.91

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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.