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Finding the Fourth Proportional to 103,469.10, 155,240.10 and 50,843.40

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Solution

The fourth proportional to 103,469.10, 155,240.10 and 50,843.40 is: 76,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,469.10 : 155,240.10 = 50,843.40 : x
  2. Step 2: Convert to fraction form
    103,469.10/155,240.10 = 50,843.40/x
  3. Step 3: Cross multiply
    103,469.10x = 155,240.10 × 50,843.40
  4. Step 4: Simplify right side
    103,469.10x = 7,892,934,500.34
  5. Step 5: Solve for x
    x = 7,892,934,500.34/103,469.10
  6. Step 6: Final answer
    x = 76,283.01

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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.