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Finding the Fourth Proportional to 361,982.66, 499,526.52 and 198,638.66

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Solution

The fourth proportional to 361,982.66, 499,526.52 and 198,638.66 is: 274,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,982.66 : 499,526.52 = 198,638.66 : x
  2. Step 2: Convert to fraction form
    361,982.66/499,526.52 = 198,638.66/x
  3. Step 3: Cross multiply
    361,982.66x = 499,526.52 × 198,638.66
  4. Step 4: Simplify right side
    361,982.66x = 99,225,278,567.26
  5. Step 5: Solve for x
    x = 99,225,278,567.26/361,982.66
  6. Step 6: Final answer
    x = 274,116.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.