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Finding the Fourth Proportional to 198,668.85, 298,003.28 and 58,427.48

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Solution

The fourth proportional to 198,668.85, 298,003.28 and 58,427.48 is: 87,641.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,668.85 : 298,003.28 = 58,427.48 : x
  2. Step 2: Convert to fraction form
    198,668.85/298,003.28 = 58,427.48/x
  3. Step 3: Cross multiply
    198,668.85x = 298,003.28 × 58,427.48
  4. Step 4: Simplify right side
    198,668.85x = 17,411,580,682.13
  5. Step 5: Solve for x
    x = 17,411,580,682.13/198,668.85
  6. Step 6: Final answer
    x = 87,641.22

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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.