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Finding the Fourth Proportional to 203,166.40, 304,058.40 and 178,283.20

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Solution

The fourth proportional to 203,166.40, 304,058.40 and 178,283.20 is: 266,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,166.40 : 304,058.40 = 178,283.20 : x
  2. Step 2: Convert to fraction form
    203,166.40/304,058.40 = 178,283.20/x
  3. Step 3: Cross multiply
    203,166.40x = 304,058.40 × 178,283.20
  4. Step 4: Simplify right side
    203,166.40x = 54,208,504,538.88
  5. Step 5: Solve for x
    x = 54,208,504,538.88/203,166.40
  6. Step 6: Final answer
    x = 266,818.26

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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.