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Finding the Fourth Proportional to 355,171.97, 532,991.49 and 130,534.33

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Solution

The fourth proportional to 355,171.97, 532,991.49 and 130,534.33 is: 195,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,171.97 : 532,991.49 = 130,534.33 : x
  2. Step 2: Convert to fraction form
    355,171.97/532,991.49 = 130,534.33/x
  3. Step 3: Cross multiply
    355,171.97x = 532,991.49 × 130,534.33
  4. Step 4: Simplify right side
    355,171.97x = 69,573,687,042.85
  5. Step 5: Solve for x
    x = 69,573,687,042.85/355,171.97
  6. Step 6: Final answer
    x = 195,887.32

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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.