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Finding the Fourth Proportional to 317,900.43, 438,680.48 and 174,666.51

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Solution

The fourth proportional to 317,900.43, 438,680.48 and 174,666.51 is: 241,027.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,900.43 : 438,680.48 = 174,666.51 : x
  2. Step 2: Convert to fraction form
    317,900.43/438,680.48 = 174,666.51/x
  3. Step 3: Cross multiply
    317,900.43x = 438,680.48 × 174,666.51
  4. Step 4: Simplify right side
    317,900.43x = 76,622,787,573.39
  5. Step 5: Solve for x
    x = 76,622,787,573.39/317,900.43
  6. Step 6: Final answer
    x = 241,027.63

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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.