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Finding the Fourth Proportional to 234,137.63, 323,109.90 and 126,707.67

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Solution

The fourth proportional to 234,137.63, 323,109.90 and 126,707.67 is: 174,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,137.63 : 323,109.90 = 126,707.67 : x
  2. Step 2: Convert to fraction form
    234,137.63/323,109.90 = 126,707.67/x
  3. Step 3: Cross multiply
    234,137.63x = 323,109.90 × 126,707.67
  4. Step 4: Simplify right side
    234,137.63x = 40,940,502,582.93
  5. Step 5: Solve for x
    x = 40,940,502,582.93/234,137.63
  6. Step 6: Final answer
    x = 174,856.57

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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.