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Finding the Fourth Proportional to 245,278.89, 338,741.87 and 168,996.33

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Solution

The fourth proportional to 245,278.89, 338,741.87 and 168,996.33 is: 233,392.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,278.89 : 338,741.87 = 168,996.33 : x
  2. Step 2: Convert to fraction form
    245,278.89/338,741.87 = 168,996.33/x
  3. Step 3: Cross multiply
    245,278.89x = 338,741.87 × 168,996.33
  4. Step 4: Simplify right side
    245,278.89x = 57,246,132,002.36
  5. Step 5: Solve for x
    x = 57,246,132,002.36/245,278.89
  6. Step 6: Final answer
    x = 233,392.01

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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.