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Finding the Fourth Proportional to 441,167.22, 661,428.21 and 141,477.21

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Solution

The fourth proportional to 441,167.22, 661,428.21 and 141,477.21 is: 212,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,167.22 : 661,428.21 = 141,477.21 : x
  2. Step 2: Convert to fraction form
    441,167.22/661,428.21 = 141,477.21/x
  3. Step 3: Cross multiply
    441,167.22x = 661,428.21 × 141,477.21
  4. Step 4: Simplify right side
    441,167.22x = 93,577,017,766.09
  5. Step 5: Solve for x
    x = 93,577,017,766.09/441,167.22
  6. Step 6: Final answer
    x = 212,112.35

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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.