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Finding the Fourth Proportional to 225,501.72, 338,008.06 and 112,910.51

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Solution

The fourth proportional to 225,501.72, 338,008.06 and 112,910.51 is: 169,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,501.72 : 338,008.06 = 112,910.51 : x
  2. Step 2: Convert to fraction form
    225,501.72/338,008.06 = 112,910.51/x
  3. Step 3: Cross multiply
    225,501.72x = 338,008.06 × 112,910.51
  4. Step 4: Simplify right side
    225,501.72x = 38,164,662,438.71
  5. Step 5: Solve for x
    x = 38,164,662,438.71/225,501.72
  6. Step 6: Final answer
    x = 169,243.33

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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.