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Finding the Fourth Proportional to 225,429.37, 338,209.92 and 100,741.21

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Solution

The fourth proportional to 225,429.37, 338,209.92 and 100,741.21 is: 151,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,429.37 : 338,209.92 = 100,741.21 : x
  2. Step 2: Convert to fraction form
    225,429.37/338,209.92 = 100,741.21/x
  3. Step 3: Cross multiply
    225,429.37x = 338,209.92 × 100,741.21
  4. Step 4: Simplify right side
    225,429.37x = 34,071,676,574.80
  5. Step 5: Solve for x
    x = 34,071,676,574.80/225,429.37
  6. Step 6: Final answer
    x = 151,141.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.