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Finding the Fourth Proportional to 189,558.64, 261,648.82 and 116,983.72

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Solution

The fourth proportional to 189,558.64, 261,648.82 and 116,983.72 is: 161,473.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,558.64 : 261,648.82 = 116,983.72 : x
  2. Step 2: Convert to fraction form
    189,558.64/261,648.82 = 116,983.72/x
  3. Step 3: Cross multiply
    189,558.64x = 261,648.82 × 116,983.72
  4. Step 4: Simplify right side
    189,558.64x = 30,608,652,297.21
  5. Step 5: Solve for x
    x = 30,608,652,297.21/189,558.64
  6. Step 6: Final answer
    x = 161,473.26

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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.