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Finding the Fourth Proportional to 189,383.84, 261,256.08 and 123,933.92

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Solution

The fourth proportional to 189,383.84, 261,256.08 and 123,933.92 is: 170,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,383.84 : 261,256.08 = 123,933.92 : x
  2. Step 2: Convert to fraction form
    189,383.84/261,256.08 = 123,933.92/x
  3. Step 3: Cross multiply
    189,383.84x = 261,256.08 × 123,933.92
  4. Step 4: Simplify right side
    189,383.84x = 32,378,490,118.23
  5. Step 5: Solve for x
    x = 32,378,490,118.23/189,383.84
  6. Step 6: Final answer
    x = 170,967.54

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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.