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Finding the Fourth Proportional to 198,067.80, 297,101.70 and 93,091.80

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Solution

The fourth proportional to 198,067.80, 297,101.70 and 93,091.80 is: 139,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,067.80 : 297,101.70 = 93,091.80 : x
  2. Step 2: Convert to fraction form
    198,067.80/297,101.70 = 93,091.80/x
  3. Step 3: Cross multiply
    198,067.80x = 297,101.70 × 93,091.80
  4. Step 4: Simplify right side
    198,067.80x = 27,657,732,036.06
  5. Step 5: Solve for x
    x = 27,657,732,036.06/198,067.80
  6. Step 6: Final answer
    x = 139,637.70

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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.