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Finding the Fourth Proportional to 235,220.40, 352,571.40 and 130,114.80

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Solution

The fourth proportional to 235,220.40, 352,571.40 and 130,114.80 is: 195,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,220.40 : 352,571.40 = 130,114.80 : x
  2. Step 2: Convert to fraction form
    235,220.40/352,571.40 = 130,114.80/x
  3. Step 3: Cross multiply
    235,220.40x = 352,571.40 × 130,114.80
  4. Step 4: Simplify right side
    235,220.40x = 45,874,757,196.72
  5. Step 5: Solve for x
    x = 45,874,757,196.72/235,220.40
  6. Step 6: Final answer
    x = 195,028.82

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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.