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Finding the Fourth Proportional to 330,367.23, 495,583.52 and 105,671.21

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Solution

The fourth proportional to 330,367.23, 495,583.52 and 105,671.21 is: 158,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,367.23 : 495,583.52 = 105,671.21 : x
  2. Step 2: Convert to fraction form
    330,367.23/495,583.52 = 105,671.21/x
  3. Step 3: Cross multiply
    330,367.23x = 495,583.52 × 105,671.21
  4. Step 4: Simplify right side
    330,367.23x = 52,368,907,208.19
  5. Step 5: Solve for x
    x = 52,368,907,208.19/330,367.23
  6. Step 6: Final answer
    x = 158,517.26

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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.