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Finding the Fourth Proportional to 224,199.66, 309,220.50 and 143,634.63

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Solution

The fourth proportional to 224,199.66, 309,220.50 and 143,634.63 is: 198,103.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,199.66 : 309,220.50 = 143,634.63 : x
  2. Step 2: Convert to fraction form
    224,199.66/309,220.50 = 143,634.63/x
  3. Step 3: Cross multiply
    224,199.66x = 309,220.50 × 143,634.63
  4. Step 4: Simplify right side
    224,199.66x = 44,414,772,105.92
  5. Step 5: Solve for x
    x = 44,414,772,105.92/224,199.66
  6. Step 6: Final answer
    x = 198,103.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.