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Finding the Fourth Proportional to 198,379.62, 297,536.59 and 65,261.54

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Solution

The fourth proportional to 198,379.62, 297,536.59 and 65,261.54 is: 97,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,379.62 : 297,536.59 = 65,261.54 : x
  2. Step 2: Convert to fraction form
    198,379.62/297,536.59 = 65,261.54/x
  3. Step 3: Cross multiply
    198,379.62x = 297,536.59 × 65,261.54
  4. Step 4: Simplify right side
    198,379.62x = 19,417,696,069.75
  5. Step 5: Solve for x
    x = 19,417,696,069.75/198,379.62
  6. Step 6: Final answer
    x = 97,881.51

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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.