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Finding the Fourth Proportional to 194,019.21, 290,839.78 and 92,790.93

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Solution

The fourth proportional to 194,019.21, 290,839.78 and 92,790.93 is: 139,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,019.21 : 290,839.78 = 92,790.93 : x
  2. Step 2: Convert to fraction form
    194,019.21/290,839.78 = 92,790.93/x
  3. Step 3: Cross multiply
    194,019.21x = 290,839.78 × 92,790.93
  4. Step 4: Simplify right side
    194,019.21x = 26,987,292,878.53
  5. Step 5: Solve for x
    x = 26,987,292,878.53/194,019.21
  6. Step 6: Final answer
    x = 139,095.98

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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.