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Finding the Fourth Proportional to 441,168.76, 661,690.61 and 141,609.90

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Solution

The fourth proportional to 441,168.76, 661,690.61 and 141,609.90 is: 212,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,168.76 : 661,690.61 = 141,609.90 : x
  2. Step 2: Convert to fraction form
    441,168.76/661,690.61 = 141,609.90/x
  3. Step 3: Cross multiply
    441,168.76x = 661,690.61 × 141,609.90
  4. Step 4: Simplify right side
    441,168.76x = 93,701,941,113.04
  5. Step 5: Solve for x
    x = 93,701,941,113.04/441,168.76
  6. Step 6: Final answer
    x = 212,394.78

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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.