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Finding the Fourth Proportional to 441,989.40, 663,032.70 and 161,567.40

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Solution

The fourth proportional to 441,989.40, 663,032.70 and 161,567.40 is: 242,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,989.40 : 663,032.70 = 161,567.40 : x
  2. Step 2: Convert to fraction form
    441,989.40/663,032.70 = 161,567.40/x
  3. Step 3: Cross multiply
    441,989.40x = 663,032.70 × 161,567.40
  4. Step 4: Simplify right side
    441,989.40x = 107,124,469,453.98
  5. Step 5: Solve for x
    x = 107,124,469,453.98/441,989.40
  6. Step 6: Final answer
    x = 242,368.87

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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.