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Finding the Fourth Proportional to 441,371, 662,058.12 and 108,947

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Solution

The fourth proportional to 441,371, 662,058.12 and 108,947 is: 163,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,371 : 662,058.12 = 108,947 : x
  2. Step 2: Convert to fraction form
    441,371/662,058.12 = 108,947/x
  3. Step 3: Cross multiply
    441,371x = 662,058.12 × 108,947
  4. Step 4: Simplify right side
    441,371x = 72,129,245,999.64
  5. Step 5: Solve for x
    x = 72,129,245,999.64/441,371
  6. Step 6: Final answer
    x = 163,420.90

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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.