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Finding the Fourth Proportional to 188,763.89, 260,494.20 and 103,880.95

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Solution

The fourth proportional to 188,763.89, 260,494.20 and 103,880.95 is: 143,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,763.89 : 260,494.20 = 103,880.95 : x
  2. Step 2: Convert to fraction form
    188,763.89/260,494.20 = 103,880.95/x
  3. Step 3: Cross multiply
    188,763.89x = 260,494.20 × 103,880.95
  4. Step 4: Simplify right side
    188,763.89x = 27,060,384,314.25
  5. Step 5: Solve for x
    x = 27,060,384,314.25/188,763.89
  6. Step 6: Final answer
    x = 143,355.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.