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Finding the Fourth Proportional to 224,479.14, 309,783 and 122,505.42

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Solution

The fourth proportional to 224,479.14, 309,783 and 122,505.42 is: 169,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,479.14 : 309,783 = 122,505.42 : x
  2. Step 2: Convert to fraction form
    224,479.14/309,783 = 122,505.42/x
  3. Step 3: Cross multiply
    224,479.14x = 309,783 × 122,505.42
  4. Step 4: Simplify right side
    224,479.14x = 37,950,096,523.86
  5. Step 5: Solve for x
    x = 37,950,096,523.86/224,479.14
  6. Step 6: Final answer
    x = 169,058.45

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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.