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Finding the Fourth Proportional to 353,642.67, 488,037.89 and 192,508.46

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Solution

The fourth proportional to 353,642.67, 488,037.89 and 192,508.46 is: 265,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,642.67 : 488,037.89 = 192,508.46 : x
  2. Step 2: Convert to fraction form
    353,642.67/488,037.89 = 192,508.46/x
  3. Step 3: Cross multiply
    353,642.67x = 488,037.89 × 192,508.46
  4. Step 4: Simplify right side
    353,642.67x = 93,951,422,496.77
  5. Step 5: Solve for x
    x = 93,951,422,496.77/353,642.67
  6. Step 6: Final answer
    x = 265,667.67

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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.