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Finding the Fourth Proportional to 194,861.70, 291,644.55 and 141,401.70

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Solution

The fourth proportional to 194,861.70, 291,644.55 and 141,401.70 is: 211,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,861.70 : 291,644.55 = 141,401.70 : x
  2. Step 2: Convert to fraction form
    194,861.70/291,644.55 = 141,401.70/x
  3. Step 3: Cross multiply
    194,861.70x = 291,644.55 × 141,401.70
  4. Step 4: Simplify right side
    194,861.70x = 41,239,035,165.74
  5. Step 5: Solve for x
    x = 41,239,035,165.74/194,861.70
  6. Step 6: Final answer
    x = 211,632.33

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1.5x scale

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.