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Finding the Fourth Proportional to 108,770.66, 163,160.41 and 51,815.28

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Solution

The fourth proportional to 108,770.66, 163,160.41 and 51,815.28 is: 77,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,770.66 : 163,160.41 = 51,815.28 : x
  2. Step 2: Convert to fraction form
    108,770.66/163,160.41 = 51,815.28/x
  3. Step 3: Cross multiply
    108,770.66x = 163,160.41 × 51,815.28
  4. Step 4: Simplify right side
    108,770.66x = 8,454,202,329.06
  5. Step 5: Solve for x
    x = 8,454,202,329.06/108,770.66
  6. Step 6: Final answer
    x = 77,725.03

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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.