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Finding the Fourth Proportional to 224,575.79, 309,919.28 and 122,605.55

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Solution

The fourth proportional to 224,575.79, 309,919.28 and 122,605.55 is: 169,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,575.79 : 309,919.28 = 122,605.55 : x
  2. Step 2: Convert to fraction form
    224,575.79/309,919.28 = 122,605.55/x
  3. Step 3: Cross multiply
    224,575.79x = 309,919.28 × 122,605.55
  4. Step 4: Simplify right side
    224,575.79x = 37,997,823,727.85
  5. Step 5: Solve for x
    x = 37,997,823,727.85/224,575.79
  6. Step 6: Final answer
    x = 169,198.22

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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.