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Finding the Fourth Proportional to 224,487.55, 309,781.43 and 122,512.16

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Solution

The fourth proportional to 224,487.55, 309,781.43 and 122,512.16 is: 169,060.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,487.55 : 309,781.43 = 122,512.16 : x
  2. Step 2: Convert to fraction form
    224,487.55/309,781.43 = 122,512.16/x
  3. Step 3: Cross multiply
    224,487.55x = 309,781.43 × 122,512.16
  4. Step 4: Simplify right side
    224,487.55x = 37,951,992,738.50
  5. Step 5: Solve for x
    x = 37,951,992,738.50/224,487.55
  6. Step 6: Final answer
    x = 169,060.57

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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.