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Finding the Fourth Proportional to 198,169.40, 273,700.92 and 130,488.94

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Solution

The fourth proportional to 198,169.40, 273,700.92 and 130,488.94 is: 180,224.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,169.40 : 273,700.92 = 130,488.94 : x
  2. Step 2: Convert to fraction form
    198,169.40/273,700.92 = 130,488.94/x
  3. Step 3: Cross multiply
    198,169.40x = 273,700.92 × 130,488.94
  4. Step 4: Simplify right side
    198,169.40x = 35,714,943,759.28
  5. Step 5: Solve for x
    x = 35,714,943,759.28/198,169.40
  6. Step 6: Final answer
    x = 180,224.31

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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.