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Finding the Fourth Proportional to 306,662.46, 423,194.16 and 170,693.46

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Solution

The fourth proportional to 306,662.46, 423,194.16 and 170,693.46 is: 235,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,662.46 : 423,194.16 = 170,693.46 : x
  2. Step 2: Convert to fraction form
    306,662.46/423,194.16 = 170,693.46/x
  3. Step 3: Cross multiply
    306,662.46x = 423,194.16 × 170,693.46
  4. Step 4: Simplify right side
    306,662.46x = 72,236,475,422.19
  5. Step 5: Solve for x
    x = 72,236,475,422.19/306,662.46
  6. Step 6: Final answer
    x = 235,556.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.