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Finding the Fourth Proportional to 146,940.80, 220,411.20 and 36,132.80

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Solution

The fourth proportional to 146,940.80, 220,411.20 and 36,132.80 is: 54,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,940.80 : 220,411.20 = 36,132.80 : x
  2. Step 2: Convert to fraction form
    146,940.80/220,411.20 = 36,132.80/x
  3. Step 3: Cross multiply
    146,940.80x = 220,411.20 × 36,132.80
  4. Step 4: Simplify right side
    146,940.80x = 7,964,073,807.36
  5. Step 5: Solve for x
    x = 7,964,073,807.36/146,940.80
  6. Step 6: Final answer
    x = 54,199.20

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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.