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Finding the Fourth Proportional to 264,820.60, 396,885.30 and 122,649.40

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Solution

The fourth proportional to 264,820.60, 396,885.30 and 122,649.40 is: 183,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,820.60 : 396,885.30 = 122,649.40 : x
  2. Step 2: Convert to fraction form
    264,820.60/396,885.30 = 122,649.40/x
  3. Step 3: Cross multiply
    264,820.60x = 396,885.30 × 122,649.40
  4. Step 4: Simplify right side
    264,820.60x = 48,677,743,913.82
  5. Step 5: Solve for x
    x = 48,677,743,913.82/264,820.60
  6. Step 6: Final answer
    x = 183,814.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.