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Finding the Fourth Proportional to 224,379.50, 309,649.56 and 122,406.62

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Solution

The fourth proportional to 224,379.50, 309,649.56 and 122,406.62 is: 168,924.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,379.50 : 309,649.56 = 122,406.62 : x
  2. Step 2: Convert to fraction form
    224,379.50/309,649.56 = 122,406.62/x
  3. Step 3: Cross multiply
    224,379.50x = 309,649.56 × 122,406.62
  4. Step 4: Simplify right side
    224,379.50x = 37,903,156,024.09
  5. Step 5: Solve for x
    x = 37,903,156,024.09/224,379.50
  6. Step 6: Final answer
    x = 168,924.33

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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.