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Finding the Fourth Proportional to 441,989.90, 663,033.45 and 161,567.90

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Solution

The fourth proportional to 441,989.90, 663,033.45 and 161,567.90 is: 242,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,989.90 : 663,033.45 = 161,567.90 : x
  2. Step 2: Convert to fraction form
    441,989.90/663,033.45 = 161,567.90/x
  3. Step 3: Cross multiply
    441,989.90x = 663,033.45 × 161,567.90
  4. Step 4: Simplify right side
    441,989.90x = 107,124,922,146.26
  5. Step 5: Solve for x
    x = 107,124,922,146.26/441,989.90
  6. Step 6: Final answer
    x = 242,369.62

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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.