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Finding the Fourth Proportional to 260,714.12, 391,128.78 and 94,497.80

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Solution

The fourth proportional to 260,714.12, 391,128.78 and 94,497.80 is: 141,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,714.12 : 391,128.78 = 94,497.80 : x
  2. Step 2: Convert to fraction form
    260,714.12/391,128.78 = 94,497.80/x
  3. Step 3: Cross multiply
    260,714.12x = 391,128.78 × 94,497.80
  4. Step 4: Simplify right side
    260,714.12x = 36,960,809,226.68
  5. Step 5: Solve for x
    x = 36,960,809,226.68/260,714.12
  6. Step 6: Final answer
    x = 141,767.58

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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.