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Finding the Fourth Proportional to 303,032.65, 418,172.44 and 165,208.58

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Solution

The fourth proportional to 303,032.65, 418,172.44 and 165,208.58 is: 227,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,032.65 : 418,172.44 = 165,208.58 : x
  2. Step 2: Convert to fraction form
    303,032.65/418,172.44 = 165,208.58/x
  3. Step 3: Cross multiply
    303,032.65x = 418,172.44 × 165,208.58
  4. Step 4: Simplify right side
    303,032.65x = 69,085,675,007.54
  5. Step 5: Solve for x
    x = 69,085,675,007.54/303,032.65
  6. Step 6: Final answer
    x = 227,980.96

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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.