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Finding the Fourth Proportional to 259,664.94, 389,200.14 and 117,618.48

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Solution

The fourth proportional to 259,664.94, 389,200.14 and 117,618.48 is: 176,293.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,664.94 : 389,200.14 = 117,618.48 : x
  2. Step 2: Convert to fraction form
    259,664.94/389,200.14 = 117,618.48/x
  3. Step 3: Cross multiply
    259,664.94x = 389,200.14 × 117,618.48
  4. Step 4: Simplify right side
    259,664.94x = 45,777,128,882.59
  5. Step 5: Solve for x
    x = 45,777,128,882.59/259,664.94
  6. Step 6: Final answer
    x = 176,293.07

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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.