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Finding the Fourth Proportional to 192,047.72, 288,154.26 and 73,704.32

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Solution

The fourth proportional to 192,047.72, 288,154.26 and 73,704.32 is: 110,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,047.72 : 288,154.26 = 73,704.32 : x
  2. Step 2: Convert to fraction form
    192,047.72/288,154.26 = 73,704.32/x
  3. Step 3: Cross multiply
    192,047.72x = 288,154.26 × 73,704.32
  4. Step 4: Simplify right side
    192,047.72x = 21,238,213,788.40
  5. Step 5: Solve for x
    x = 21,238,213,788.40/192,047.72
  6. Step 6: Final answer
    x = 110,588.21

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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.