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Finding the Fourth Proportional to 188,704.68, 260,369.71 and 137,745.19

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Solution

The fourth proportional to 188,704.68, 260,369.71 and 137,745.19 is: 190,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,704.68 : 260,369.71 = 137,745.19 : x
  2. Step 2: Convert to fraction form
    188,704.68/260,369.71 = 137,745.19/x
  3. Step 3: Cross multiply
    188,704.68x = 260,369.71 × 137,745.19
  4. Step 4: Simplify right side
    188,704.68x = 35,864,674,178.91
  5. Step 5: Solve for x
    x = 35,864,674,178.91/188,704.68
  6. Step 6: Final answer
    x = 190,057.15

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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.