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Finding the Fourth Proportional to 224,625.52, 309,989.60 and 122,657.46

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Solution

The fourth proportional to 224,625.52, 309,989.60 and 122,657.46 is: 169,270.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,625.52 : 309,989.60 = 122,657.46 : x
  2. Step 2: Convert to fraction form
    224,625.52/309,989.60 = 122,657.46/x
  3. Step 3: Cross multiply
    224,625.52x = 309,989.60 × 122,657.46
  4. Step 4: Simplify right side
    224,625.52x = 38,022,536,962.42
  5. Step 5: Solve for x
    x = 38,022,536,962.42/224,625.52
  6. Step 6: Final answer
    x = 169,270.78

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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.