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Finding the Fourth Proportional to 194,388.93, 291,620.16 and 76,052.79

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Solution

The fourth proportional to 194,388.93, 291,620.16 and 76,052.79 is: 114,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,388.93 : 291,620.16 = 76,052.79 : x
  2. Step 2: Convert to fraction form
    194,388.93/291,620.16 = 76,052.79/x
  3. Step 3: Cross multiply
    194,388.93x = 291,620.16 × 76,052.79
  4. Step 4: Simplify right side
    194,388.93x = 22,178,526,788.25
  5. Step 5: Solve for x
    x = 22,178,526,788.25/194,388.93
  6. Step 6: Final answer
    x = 114,093.57

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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.