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Finding the Fourth Proportional to 225,770.10, 311,576.72 and 125,168.10

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Solution

The fourth proportional to 225,770.10, 311,576.72 and 125,168.10 is: 172,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,770.10 : 311,576.72 = 125,168.10 : x
  2. Step 2: Convert to fraction form
    225,770.10/311,576.72 = 125,168.10/x
  3. Step 3: Cross multiply
    225,770.10x = 311,576.72 × 125,168.10
  4. Step 4: Simplify right side
    225,770.10x = 38,999,465,420.79
  5. Step 5: Solve for x
    x = 38,999,465,420.79/225,770.10
  6. Step 6: Final answer
    x = 172,739.73

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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.