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Finding the Fourth Proportional to 74,522.75, 111,784.18 and 18,362.86

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Solution

The fourth proportional to 74,522.75, 111,784.18 and 18,362.86 is: 27,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,522.75 : 111,784.18 = 18,362.86 : x
  2. Step 2: Convert to fraction form
    74,522.75/111,784.18 = 18,362.86/x
  3. Step 3: Cross multiply
    74,522.75x = 111,784.18 × 18,362.86
  4. Step 4: Simplify right side
    74,522.75x = 2,052,676,678.16
  5. Step 5: Solve for x
    x = 2,052,676,678.16/74,522.75
  6. Step 6: Final answer
    x = 27,544.30

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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.