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Finding the Fourth Proportional to 441,308.70, 661,969.53 and 108,884.70

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Solution

The fourth proportional to 441,308.70, 661,969.53 and 108,884.70 is: 163,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,308.70 : 661,969.53 = 108,884.70 : x
  2. Step 2: Convert to fraction form
    441,308.70/661,969.53 = 108,884.70/x
  3. Step 3: Cross multiply
    441,308.70x = 661,969.53 × 108,884.70
  4. Step 4: Simplify right side
    441,308.70x = 72,078,353,683.19
  5. Step 5: Solve for x
    x = 72,078,353,683.19/441,308.70
  6. Step 6: Final answer
    x = 163,328.65

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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.