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Finding the Fourth Proportional to 225,968.76, 311,835.33 and 125,366.76

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Solution

The fourth proportional to 225,968.76, 311,835.33 and 125,366.76 is: 173,005.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,968.76 : 311,835.33 = 125,366.76 : x
  2. Step 2: Convert to fraction form
    225,968.76/311,835.33 = 125,366.76/x
  3. Step 3: Cross multiply
    225,968.76x = 311,835.33 × 125,366.76
  4. Step 4: Simplify right side
    225,968.76x = 39,093,784,975.63
  5. Step 5: Solve for x
    x = 39,093,784,975.63/225,968.76
  6. Step 6: Final answer
    x = 173,005.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.