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Finding the Fourth Proportional to 254,355.29, 351,011.66 and 158,917.34

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Solution

The fourth proportional to 254,355.29, 351,011.66 and 158,917.34 is: 219,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,355.29 : 351,011.66 = 158,917.34 : x
  2. Step 2: Convert to fraction form
    254,355.29/351,011.66 = 158,917.34/x
  3. Step 3: Cross multiply
    254,355.29x = 351,011.66 × 158,917.34
  4. Step 4: Simplify right side
    254,355.29x = 55,781,836,766.54
  5. Step 5: Solve for x
    x = 55,781,836,766.54/254,355.29
  6. Step 6: Final answer
    x = 219,306.77

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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.