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Finding the Fourth Proportional to 225,576.48, 311,302.16 and 123,610.94

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Solution

The fourth proportional to 225,576.48, 311,302.16 and 123,610.94 is: 170,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,576.48 : 311,302.16 = 123,610.94 : x
  2. Step 2: Convert to fraction form
    225,576.48/311,302.16 = 123,610.94/x
  3. Step 3: Cross multiply
    225,576.48x = 311,302.16 × 123,610.94
  4. Step 4: Simplify right side
    225,576.48x = 38,480,352,621.63
  5. Step 5: Solve for x
    x = 38,480,352,621.63/225,576.48
  6. Step 6: Final answer
    x = 170,586.72

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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.