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Finding the Fourth Proportional to 263,418.60, 394,885.70 and 94,897.72

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Solution

The fourth proportional to 263,418.60, 394,885.70 and 94,897.72 is: 142,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,418.60 : 394,885.70 = 94,897.72 : x
  2. Step 2: Convert to fraction form
    263,418.60/394,885.70 = 94,897.72/x
  3. Step 3: Cross multiply
    263,418.60x = 394,885.70 × 94,897.72
  4. Step 4: Simplify right side
    263,418.60x = 37,473,752,590.60
  5. Step 5: Solve for x
    x = 37,473,752,590.60/263,418.60
  6. Step 6: Final answer
    x = 142,259.33

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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.