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Finding the Fourth Proportional to 189,495.64, 261,523.25 and 108,926.56

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Solution

The fourth proportional to 189,495.64, 261,523.25 and 108,926.56 is: 150,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,495.64 : 261,523.25 = 108,926.56 : x
  2. Step 2: Convert to fraction form
    189,495.64/261,523.25 = 108,926.56/x
  3. Step 3: Cross multiply
    189,495.64x = 261,523.25 × 108,926.56
  4. Step 4: Simplify right side
    189,495.64x = 28,486,827,982.52
  5. Step 5: Solve for x
    x = 28,486,827,982.52/189,495.64
  6. Step 6: Final answer
    x = 150,329.73

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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.