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Finding the Fourth Proportional to 225,696.75, 311,461.56 and 125,094.75

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Solution

The fourth proportional to 225,696.75, 311,461.56 and 125,094.75 is: 172,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,696.75 : 311,461.56 = 125,094.75 : x
  2. Step 2: Convert to fraction form
    225,696.75/311,461.56 = 125,094.75/x
  3. Step 3: Cross multiply
    225,696.75x = 311,461.56 × 125,094.75
  4. Step 4: Simplify right side
    225,696.75x = 38,962,205,982.81
  5. Step 5: Solve for x
    x = 38,962,205,982.81/225,696.75
  6. Step 6: Final answer
    x = 172,630.78

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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.