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Finding the Fourth Proportional to 189,198.10, 262,220.42 and 185,655.16

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Solution

The fourth proportional to 189,198.10, 262,220.42 and 185,655.16 is: 257,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,198.10 : 262,220.42 = 185,655.16 : x
  2. Step 2: Convert to fraction form
    189,198.10/262,220.42 = 185,655.16/x
  3. Step 3: Cross multiply
    189,198.10x = 262,220.42 × 185,655.16
  4. Step 4: Simplify right side
    189,198.10x = 48,682,574,030.37
  5. Step 5: Solve for x
    x = 48,682,574,030.37/189,198.10
  6. Step 6: Final answer
    x = 257,310.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.