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Finding the Fourth Proportional to 108,751.70, 163,074.81 and 63,787.75

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Solution

The fourth proportional to 108,751.70, 163,074.81 and 63,787.75 is: 95,650.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,751.70 : 163,074.81 = 63,787.75 : x
  2. Step 2: Convert to fraction form
    108,751.70/163,074.81 = 63,787.75/x
  3. Step 3: Cross multiply
    108,751.70x = 163,074.81 × 63,787.75
  4. Step 4: Simplify right side
    108,751.70x = 10,402,175,211.58
  5. Step 5: Solve for x
    x = 10,402,175,211.58/108,751.70
  6. Step 6: Final answer
    x = 95,650.69

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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.