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Finding the Fourth Proportional to 220,043.80, 329,028.90 and 164,056.60

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Solution

The fourth proportional to 220,043.80, 329,028.90 and 164,056.60 is: 245,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,043.80 : 329,028.90 = 164,056.60 : x
  2. Step 2: Convert to fraction form
    220,043.80/329,028.90 = 164,056.60/x
  3. Step 3: Cross multiply
    220,043.80x = 329,028.90 × 164,056.60
  4. Step 4: Simplify right side
    220,043.80x = 53,979,362,635.74
  5. Step 5: Solve for x
    x = 53,979,362,635.74/220,043.80
  6. Step 6: Final answer
    x = 245,311.90

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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.