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Finding the Fourth Proportional to 74,362, 111,544.43 and 18,202.59

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Solution

The fourth proportional to 74,362, 111,544.43 and 18,202.59 is: 27,304.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,362 : 111,544.43 = 18,202.59 : x
  2. Step 2: Convert to fraction form
    74,362/111,544.43 = 18,202.59/x
  3. Step 3: Cross multiply
    74,362x = 111,544.43 × 18,202.59
  4. Step 4: Simplify right side
    74,362x = 2,030,397,526.07
  5. Step 5: Solve for x
    x = 2,030,397,526.07/74,362
  6. Step 6: Final answer
    x = 27,304.24

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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.