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Finding the Fourth Proportional to 192,990.16, 266,321.64 and 108,106.64

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Solution

The fourth proportional to 192,990.16, 266,321.64 and 108,106.64 is: 149,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,990.16 : 266,321.64 = 108,106.64 : x
  2. Step 2: Convert to fraction form
    192,990.16/266,321.64 = 108,106.64/x
  3. Step 3: Cross multiply
    192,990.16x = 266,321.64 × 108,106.64
  4. Step 4: Simplify right side
    192,990.16x = 28,791,137,659.69
  5. Step 5: Solve for x
    x = 28,791,137,659.69/192,990.16
  6. Step 6: Final answer
    x = 149,184.49

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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.