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Finding the Fourth Proportional to 146,563.20, 219,844.80 and 130,816.80

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Solution

The fourth proportional to 146,563.20, 219,844.80 and 130,816.80 is: 196,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,563.20 : 219,844.80 = 130,816.80 : x
  2. Step 2: Convert to fraction form
    146,563.20/219,844.80 = 130,816.80/x
  3. Step 3: Cross multiply
    146,563.20x = 219,844.80 × 130,816.80
  4. Step 4: Simplify right side
    146,563.20x = 28,759,393,232.64
  5. Step 5: Solve for x
    x = 28,759,393,232.64/146,563.20
  6. Step 6: Final answer
    x = 196,225.20

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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.