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Finding the Fourth Proportional to 274,079.80, 411,119.70 and 134,111.80

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Solution

The fourth proportional to 274,079.80, 411,119.70 and 134,111.80 is: 201,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,079.80 : 411,119.70 = 134,111.80 : x
  2. Step 2: Convert to fraction form
    274,079.80/411,119.70 = 134,111.80/x
  3. Step 3: Cross multiply
    274,079.80x = 411,119.70 × 134,111.80
  4. Step 4: Simplify right side
    274,079.80x = 55,136,002,982.46
  5. Step 5: Solve for x
    x = 55,136,002,982.46/274,079.80
  6. Step 6: Final answer
    x = 201,167.70

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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.