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Finding the Fourth Proportional to 217,275.37, 325,983.97 and 104,968.48

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Solution

The fourth proportional to 217,275.37, 325,983.97 and 104,968.48 is: 157,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,275.37 : 325,983.97 = 104,968.48 : x
  2. Step 2: Convert to fraction form
    217,275.37/325,983.97 = 104,968.48/x
  3. Step 3: Cross multiply
    217,275.37x = 325,983.97 × 104,968.48
  4. Step 4: Simplify right side
    217,275.37x = 34,218,042,384.34
  5. Step 5: Solve for x
    x = 34,218,042,384.34/217,275.37
  6. Step 6: Final answer
    x = 157,486.98

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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.