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Finding the Fourth Proportional to 235,090.80, 352,636.20 and 124,498.80

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Solution

The fourth proportional to 235,090.80, 352,636.20 and 124,498.80 is: 186,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,090.80 : 352,636.20 = 124,498.80 : x
  2. Step 2: Convert to fraction form
    235,090.80/352,636.20 = 124,498.80/x
  3. Step 3: Cross multiply
    235,090.80x = 352,636.20 × 124,498.80
  4. Step 4: Simplify right side
    235,090.80x = 43,902,783,736.56
  5. Step 5: Solve for x
    x = 43,902,783,736.56/235,090.80
  6. Step 6: Final answer
    x = 186,748.20

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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.