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Finding the Fourth Proportional to 164,563.60, 246,960.60 and 71,136.40

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Solution

The fourth proportional to 164,563.60, 246,960.60 and 71,136.40 is: 106,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,563.60 : 246,960.60 = 71,136.40 : x
  2. Step 2: Convert to fraction form
    164,563.60/246,960.60 = 71,136.40/x
  3. Step 3: Cross multiply
    164,563.60x = 246,960.60 × 71,136.40
  4. Step 4: Simplify right side
    164,563.60x = 17,567,888,025.84
  5. Step 5: Solve for x
    x = 17,567,888,025.84/164,563.60
  6. Step 6: Final answer
    x = 106,754.40

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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.