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Finding the Fourth Proportional to 317,900.85, 438,694.29 and 174,660.81

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Solution

The fourth proportional to 317,900.85, 438,694.29 and 174,660.81 is: 241,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,900.85 : 438,694.29 = 174,660.81 : x
  2. Step 2: Convert to fraction form
    317,900.85/438,694.29 = 174,660.81/x
  3. Step 3: Cross multiply
    317,900.85x = 438,694.29 × 174,660.81
  4. Step 4: Simplify right side
    317,900.85x = 76,622,700,033.77
  5. Step 5: Solve for x
    x = 76,622,700,033.77/317,900.85
  6. Step 6: Final answer
    x = 241,027.04

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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.