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Finding the Fourth Proportional to 189,083.08, 260,940.42 and 108,525.28

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Solution

The fourth proportional to 189,083.08, 260,940.42 and 108,525.28 is: 149,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,083.08 : 260,940.42 = 108,525.28 : x
  2. Step 2: Convert to fraction form
    189,083.08/260,940.42 = 108,525.28/x
  3. Step 3: Cross multiply
    189,083.08x = 260,940.42 × 108,525.28
  4. Step 4: Simplify right side
    189,083.08x = 28,318,632,143.82
  5. Step 5: Solve for x
    x = 28,318,632,143.82/189,083.08
  6. Step 6: Final answer
    x = 149,768.20

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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.