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Finding the Fourth Proportional to 170,814.40, 256,221.60 and 92,082.40

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Solution

The fourth proportional to 170,814.40, 256,221.60 and 92,082.40 is: 138,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,814.40 : 256,221.60 = 92,082.40 : x
  2. Step 2: Convert to fraction form
    170,814.40/256,221.60 = 92,082.40/x
  3. Step 3: Cross multiply
    170,814.40x = 256,221.60 × 92,082.40
  4. Step 4: Simplify right side
    170,814.40x = 23,593,499,859.84
  5. Step 5: Solve for x
    x = 23,593,499,859.84/170,814.40
  6. Step 6: Final answer
    x = 138,123.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.