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Finding the Fourth Proportional to 224,078.79, 309,224.73 and 122,105.13

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Solution

The fourth proportional to 224,078.79, 309,224.73 and 122,105.13 is: 168,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,078.79 : 309,224.73 = 122,105.13 : x
  2. Step 2: Convert to fraction form
    224,078.79/309,224.73 = 122,105.13/x
  3. Step 3: Cross multiply
    224,078.79x = 309,224.73 × 122,105.13
  4. Step 4: Simplify right side
    224,078.79x = 37,757,925,855.86
  5. Step 5: Solve for x
    x = 37,757,925,855.86/224,078.79
  6. Step 6: Final answer
    x = 168,502.90

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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.