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Finding the Fourth Proportional to 442,042.25, 662,508.25 and 189,025.52

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Solution

The fourth proportional to 442,042.25, 662,508.25 and 189,025.52 is: 283,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,042.25 : 662,508.25 = 189,025.52 : x
  2. Step 2: Convert to fraction form
    442,042.25/662,508.25 = 189,025.52/x
  3. Step 3: Cross multiply
    442,042.25x = 662,508.25 × 189,025.52
  4. Step 4: Simplify right side
    442,042.25x = 125,230,962,675.44
  5. Step 5: Solve for x
    x = 125,230,962,675.44/442,042.25
  6. Step 6: Final answer
    x = 283,300.89

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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.