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Finding the Fourth Proportional to 188,672.22, 260,329.86 and 108,124.98

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Solution

The fourth proportional to 188,672.22, 260,329.86 and 108,124.98 is: 149,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,672.22 : 260,329.86 = 108,124.98 : x
  2. Step 2: Convert to fraction form
    188,672.22/260,329.86 = 108,124.98/x
  3. Step 3: Cross multiply
    188,672.22x = 260,329.86 × 108,124.98
  4. Step 4: Simplify right side
    188,672.22x = 28,148,160,905.90
  5. Step 5: Solve for x
    x = 28,148,160,905.90/188,672.22
  6. Step 6: Final answer
    x = 149,190.81

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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.