Home / 198,055.29-297,008.33-71,664.28

Finding the Fourth Proportional to 198,055.29, 297,008.33 and 71,664.28

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Solution

The fourth proportional to 198,055.29, 297,008.33 and 71,664.28 is: 107,469.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,055.29 : 297,008.33 = 71,664.28 : x
  2. Step 2: Convert to fraction form
    198,055.29/297,008.33 = 71,664.28/x
  3. Step 3: Cross multiply
    198,055.29x = 297,008.33 × 71,664.28
  4. Step 4: Simplify right side
    198,055.29x = 21,284,888,123.45
  5. Step 5: Solve for x
    x = 21,284,888,123.45/198,055.29
  6. Step 6: Final answer
    x = 107,469.42

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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.