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Finding the Fourth Proportional to 321,683.19, 482,188.08 and 108,377.39

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Solution

The fourth proportional to 321,683.19, 482,188.08 and 108,377.39 is: 162,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,683.19 : 482,188.08 = 108,377.39 : x
  2. Step 2: Convert to fraction form
    321,683.19/482,188.08 = 108,377.39/x
  3. Step 3: Cross multiply
    321,683.19x = 482,188.08 × 108,377.39
  4. Step 4: Simplify right side
    321,683.19x = 52,258,285,599.51
  5. Step 5: Solve for x
    x = 52,258,285,599.51/321,683.19
  6. Step 6: Final answer
    x = 162,452.65

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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.