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Finding the Fourth Proportional to 270,555.39, 405,717.66 and 93,080.34

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Solution

The fourth proportional to 270,555.39, 405,717.66 and 93,080.34 is: 139,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,555.39 : 405,717.66 = 93,080.34 : x
  2. Step 2: Convert to fraction form
    270,555.39/405,717.66 = 93,080.34/x
  3. Step 3: Cross multiply
    270,555.39x = 405,717.66 × 93,080.34
  4. Step 4: Simplify right side
    270,555.39x = 37,764,337,736.80
  5. Step 5: Solve for x
    x = 37,764,337,736.80/270,555.39
  6. Step 6: Final answer
    x = 139,580.80

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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.