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Finding the Fourth Proportional to 198,846.66, 298,316.70 and 65,726.92

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Solution

The fourth proportional to 198,846.66, 298,316.70 and 65,726.92 is: 98,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,846.66 : 298,316.70 = 65,726.92 : x
  2. Step 2: Convert to fraction form
    198,846.66/298,316.70 = 65,726.92/x
  3. Step 3: Cross multiply
    198,846.66x = 298,316.70 × 65,726.92
  4. Step 4: Simplify right side
    198,846.66x = 19,607,437,546.93
  5. Step 5: Solve for x
    x = 19,607,437,546.93/198,846.66
  6. Step 6: Final answer
    x = 98,605.82

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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.