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Finding the Fourth Proportional to 264,415.60, 396,574.80 and 164,396.80

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Solution

The fourth proportional to 264,415.60, 396,574.80 and 164,396.80 is: 246,564.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,415.60 : 396,574.80 = 164,396.80 : x
  2. Step 2: Convert to fraction form
    264,415.60/396,574.80 = 164,396.80/x
  3. Step 3: Cross multiply
    264,415.60x = 396,574.80 × 164,396.80
  4. Step 4: Simplify right side
    264,415.60x = 65,195,628,080.64
  5. Step 5: Solve for x
    x = 65,195,628,080.64/264,415.60
  6. Step 6: Final answer
    x = 246,564.98

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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.