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Finding the Fourth Proportional to 157,571.94, 217,450.67 and 85,952.28

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Solution

The fourth proportional to 157,571.94, 217,450.67 and 85,952.28 is: 118,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,571.94 : 217,450.67 = 85,952.28 : x
  2. Step 2: Convert to fraction form
    157,571.94/217,450.67 = 85,952.28/x
  3. Step 3: Cross multiply
    157,571.94x = 217,450.67 × 85,952.28
  4. Step 4: Simplify right side
    157,571.94x = 18,690,380,444.27
  5. Step 5: Solve for x
    x = 18,690,380,444.27/157,571.94
  6. Step 6: Final answer
    x = 118,614.90

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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.