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Finding the Fourth Proportional to 164,558.80, 246,838.20 and 145,205.20

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Solution

The fourth proportional to 164,558.80, 246,838.20 and 145,205.20 is: 217,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,558.80 : 246,838.20 = 145,205.20 : x
  2. Step 2: Convert to fraction form
    164,558.80/246,838.20 = 145,205.20/x
  3. Step 3: Cross multiply
    164,558.80x = 246,838.20 × 145,205.20
  4. Step 4: Simplify right side
    164,558.80x = 35,842,190,198.64
  5. Step 5: Solve for x
    x = 35,842,190,198.64/164,558.80
  6. Step 6: Final answer
    x = 217,807.80

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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.