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Finding the Fourth Proportional to 198,978.16, 298,499.66 and 58,750.96

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Solution

The fourth proportional to 198,978.16, 298,499.66 and 58,750.96 is: 88,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,978.16 : 298,499.66 = 58,750.96 : x
  2. Step 2: Convert to fraction form
    198,978.16/298,499.66 = 58,750.96/x
  3. Step 3: Cross multiply
    198,978.16x = 298,499.66 × 58,750.96
  4. Step 4: Simplify right side
    198,978.16x = 17,537,141,584.67
  5. Step 5: Solve for x
    x = 17,537,141,584.67/198,978.16
  6. Step 6: Final answer
    x = 88,136.01

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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.