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Finding the Fourth Proportional to 317,883.82, 438,685.87 and 174,649.27

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Solution

The fourth proportional to 317,883.82, 438,685.87 and 174,649.27 is: 241,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,883.82 : 438,685.87 = 174,649.27 : x
  2. Step 2: Convert to fraction form
    317,883.82/438,685.87 = 174,649.27/x
  3. Step 3: Cross multiply
    317,883.82x = 438,685.87 × 174,649.27
  4. Step 4: Simplify right side
    317,883.82x = 76,616,166,081.57
  5. Step 5: Solve for x
    x = 76,616,166,081.57/317,883.82
  6. Step 6: Final answer
    x = 241,019.40

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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.