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Finding the Fourth Proportional to 332,478.96, 458,707.20 and 189,203.16

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Solution

The fourth proportional to 332,478.96, 458,707.20 and 189,203.16 is: 261,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,478.96 : 458,707.20 = 189,203.16 : x
  2. Step 2: Convert to fraction form
    332,478.96/458,707.20 = 189,203.16/x
  3. Step 3: Cross multiply
    332,478.96x = 458,707.20 × 189,203.16
  4. Step 4: Simplify right side
    332,478.96x = 86,788,851,754.75
  5. Step 5: Solve for x
    x = 86,788,851,754.75/332,478.96
  6. Step 6: Final answer
    x = 261,035.62

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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.