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Finding the Fourth Proportional to 308,765.25, 426,096.05 and 167,453.25

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Solution

The fourth proportional to 308,765.25, 426,096.05 and 167,453.25 is: 231,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,765.25 : 426,096.05 = 167,453.25 : x
  2. Step 2: Convert to fraction form
    308,765.25/426,096.05 = 167,453.25/x
  3. Step 3: Cross multiply
    308,765.25x = 426,096.05 × 167,453.25
  4. Step 4: Simplify right side
    308,765.25x = 71,351,168,384.66
  5. Step 5: Solve for x
    x = 71,351,168,384.66/308,765.25
  6. Step 6: Final answer
    x = 231,085.49

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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.