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Finding the Fourth Proportional to 173,257.60, 260,080.80 and 133,988.80

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Solution

The fourth proportional to 173,257.60, 260,080.80 and 133,988.80 is: 201,133.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,257.60 : 260,080.80 = 133,988.80 : x
  2. Step 2: Convert to fraction form
    173,257.60/260,080.80 = 133,988.80/x
  3. Step 3: Cross multiply
    173,257.60x = 260,080.80 × 133,988.80
  4. Step 4: Simplify right side
    173,257.60x = 34,847,914,295.04
  5. Step 5: Solve for x
    x = 34,847,914,295.04/173,257.60
  6. Step 6: Final answer
    x = 201,133.54

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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.