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Finding the Fourth Proportional to 198,979.16, 298,501.16 and 58,751.96

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Solution

The fourth proportional to 198,979.16, 298,501.16 and 58,751.96 is: 88,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,979.16 : 298,501.16 = 58,751.96 : x
  2. Step 2: Convert to fraction form
    198,979.16/298,501.16 = 58,751.96/x
  3. Step 3: Cross multiply
    198,979.16x = 298,501.16 × 58,751.96
  4. Step 4: Simplify right side
    198,979.16x = 17,537,528,212.27
  5. Step 5: Solve for x
    x = 17,537,528,212.27/198,979.16
  6. Step 6: Final answer
    x = 88,137.51

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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.