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Finding the Fourth Proportional to 225,903.68, 311,747.24 and 125,301.68

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Solution

The fourth proportional to 225,903.68, 311,747.24 and 125,301.68 is: 172,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,903.68 : 311,747.24 = 125,301.68 : x
  2. Step 2: Convert to fraction form
    225,903.68/311,747.24 = 125,301.68/x
  3. Step 3: Cross multiply
    225,903.68x = 311,747.24 × 125,301.68
  4. Step 4: Simplify right side
    225,903.68x = 39,062,452,907.36
  5. Step 5: Solve for x
    x = 39,062,452,907.36/225,903.68
  6. Step 6: Final answer
    x = 172,916.41

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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.