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Finding the Fourth Proportional to 194,846.90, 292,278.60 and 61,724.21

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Solution

The fourth proportional to 194,846.90, 292,278.60 and 61,724.21 is: 92,588.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,846.90 : 292,278.60 = 61,724.21 : x
  2. Step 2: Convert to fraction form
    194,846.90/292,278.60 = 61,724.21/x
  3. Step 3: Cross multiply
    194,846.90x = 292,278.60 × 61,724.21
  4. Step 4: Simplify right side
    194,846.90x = 18,040,664,223.51
  5. Step 5: Solve for x
    x = 18,040,664,223.51/194,846.90
  6. Step 6: Final answer
    x = 92,588.92

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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.