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Finding the Fourth Proportional to 194,991.90, 292,401.45 and 89,843.10

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Solution

The fourth proportional to 194,991.90, 292,401.45 and 89,843.10 is: 134,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,991.90 : 292,401.45 = 89,843.10 : x
  2. Step 2: Convert to fraction form
    194,991.90/292,401.45 = 89,843.10/x
  3. Step 3: Cross multiply
    194,991.90x = 292,401.45 × 89,843.10
  4. Step 4: Simplify right side
    194,991.90x = 26,270,252,712.50
  5. Step 5: Solve for x
    x = 26,270,252,712.50/194,991.90
  6. Step 6: Final answer
    x = 134,724.84

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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.