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Finding the Fourth Proportional to 197,605.98, 296,456.13 and 64,486.49

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Solution

The fourth proportional to 197,605.98, 296,456.13 and 64,486.49 is: 96,745.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,605.98 : 296,456.13 = 64,486.49 : x
  2. Step 2: Convert to fraction form
    197,605.98/296,456.13 = 64,486.49/x
  3. Step 3: Cross multiply
    197,605.98x = 296,456.13 × 64,486.49
  4. Step 4: Simplify right side
    197,605.98x = 19,117,413,780.40
  5. Step 5: Solve for x
    x = 19,117,413,780.40/197,605.98
  6. Step 6: Final answer
    x = 96,745.12

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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.