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Finding the Fourth Proportional to 188,904.75, 260,680.84 and 108,276.13

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Solution

The fourth proportional to 188,904.75, 260,680.84 and 108,276.13 is: 149,416.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,904.75 : 260,680.84 = 108,276.13 : x
  2. Step 2: Convert to fraction form
    188,904.75/260,680.84 = 108,276.13/x
  3. Step 3: Cross multiply
    188,904.75x = 260,680.84 × 108,276.13
  4. Step 4: Simplify right side
    188,904.75x = 28,225,512,520.35
  5. Step 5: Solve for x
    x = 28,225,512,520.35/188,904.75
  6. Step 6: Final answer
    x = 149,416.64

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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.