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Finding the Fourth Proportional to 354,542.54, 531,908.57 and 154,879.16

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Solution

The fourth proportional to 354,542.54, 531,908.57 and 154,879.16 is: 232,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,542.54 : 531,908.57 = 154,879.16 : x
  2. Step 2: Convert to fraction form
    354,542.54/531,908.57 = 154,879.16/x
  3. Step 3: Cross multiply
    354,542.54x = 531,908.57 × 154,879.16
  4. Step 4: Simplify right side
    354,542.54x = 82,381,550,246.06
  5. Step 5: Solve for x
    x = 82,381,550,246.06/354,542.54
  6. Step 6: Final answer
    x = 232,360.13

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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.