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Finding the Fourth Proportional to 351,682.54, 527,524.42 and 85,443.24

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Solution

The fourth proportional to 351,682.54, 527,524.42 and 85,443.24 is: 128,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,682.54 : 527,524.42 = 85,443.24 : x
  2. Step 2: Convert to fraction form
    351,682.54/527,524.42 = 85,443.24/x
  3. Step 3: Cross multiply
    351,682.54x = 527,524.42 × 85,443.24
  4. Step 4: Simplify right side
    351,682.54x = 45,073,395,623.92
  5. Step 5: Solve for x
    x = 45,073,395,623.92/351,682.54
  6. Step 6: Final answer
    x = 128,165.01

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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.