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Finding the Fourth Proportional to 264,031.43, 396,070.42 and 74,493.45

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Solution

The fourth proportional to 264,031.43, 396,070.42 and 74,493.45 is: 111,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,031.43 : 396,070.42 = 74,493.45 : x
  2. Step 2: Convert to fraction form
    264,031.43/396,070.42 = 74,493.45/x
  3. Step 3: Cross multiply
    264,031.43x = 396,070.42 × 74,493.45
  4. Step 4: Simplify right side
    264,031.43x = 29,504,652,028.75
  5. Step 5: Solve for x
    x = 29,504,652,028.75/264,031.43
  6. Step 6: Final answer
    x = 111,746.74

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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.