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Finding the Fourth Proportional to 308,480.19, 462,775.16 and 108,916.44

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Solution

The fourth proportional to 308,480.19, 462,775.16 and 108,916.44 is: 163,394.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,480.19 : 462,775.16 = 108,916.44 : x
  2. Step 2: Convert to fraction form
    308,480.19/462,775.16 = 108,916.44/x
  3. Step 3: Cross multiply
    308,480.19x = 462,775.16 × 108,916.44
  4. Step 4: Simplify right side
    308,480.19x = 50,403,822,947.63
  5. Step 5: Solve for x
    x = 50,403,822,947.63/308,480.19
  6. Step 6: Final answer
    x = 163,394.03

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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.