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Finding the Fourth Proportional to 198,520.95, 297,717.44 and 65,369.51

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Solution

The fourth proportional to 198,520.95, 297,717.44 and 65,369.51 is: 98,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,520.95 : 297,717.44 = 65,369.51 : x
  2. Step 2: Convert to fraction form
    198,520.95/297,717.44 = 65,369.51/x
  3. Step 3: Cross multiply
    198,520.95x = 297,717.44 × 65,369.51
  4. Step 4: Simplify right side
    198,520.95x = 19,461,641,355.82
  5. Step 5: Solve for x
    x = 19,461,641,355.82/198,520.95
  6. Step 6: Final answer
    x = 98,033.19

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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.