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Finding the Fourth Proportional to 236,571.70, 354,857.55 and 143,259.70

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Solution

The fourth proportional to 236,571.70, 354,857.55 and 143,259.70 is: 214,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,571.70 : 354,857.55 = 143,259.70 : x
  2. Step 2: Convert to fraction form
    236,571.70/354,857.55 = 143,259.70/x
  3. Step 3: Cross multiply
    236,571.70x = 354,857.55 × 143,259.70
  4. Step 4: Simplify right side
    236,571.70x = 50,836,786,155.74
  5. Step 5: Solve for x
    x = 50,836,786,155.74/236,571.70
  6. Step 6: Final answer
    x = 214,889.55

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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.