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Finding the Fourth Proportional to 317,885.28, 438,689.84 and 174,648.96

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Solution

The fourth proportional to 317,885.28, 438,689.84 and 174,648.96 is: 241,020.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,885.28 : 438,689.84 = 174,648.96 : x
  2. Step 2: Convert to fraction form
    317,885.28/438,689.84 = 174,648.96/x
  3. Step 3: Cross multiply
    317,885.28x = 438,689.84 × 174,648.96
  4. Step 4: Simplify right side
    317,885.28x = 76,616,724,318.57
  5. Step 5: Solve for x
    x = 76,616,724,318.57/317,885.28
  6. Step 6: Final answer
    x = 241,020.04

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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.