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Finding the Fourth Proportional to 218,892.26, 328,338.45 and 52,680.26

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Solution

The fourth proportional to 218,892.26, 328,338.45 and 52,680.26 is: 79,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,892.26 : 328,338.45 = 52,680.26 : x
  2. Step 2: Convert to fraction form
    218,892.26/328,338.45 = 52,680.26/x
  3. Step 3: Cross multiply
    218,892.26x = 328,338.45 × 52,680.26
  4. Step 4: Simplify right side
    218,892.26x = 17,296,954,914.00
  5. Step 5: Solve for x
    x = 17,296,954,914.00/218,892.26
  6. Step 6: Final answer
    x = 79,020.40

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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.