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Finding the Fourth Proportional to 317,955.86, 438,774.01 and 174,712.82

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Solution

The fourth proportional to 317,955.86, 438,774.01 and 174,712.82 is: 241,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,955.86 : 438,774.01 = 174,712.82 : x
  2. Step 2: Convert to fraction form
    317,955.86/438,774.01 = 174,712.82/x
  3. Step 3: Cross multiply
    317,955.86x = 438,774.01 × 174,712.82
  4. Step 4: Simplify right side
    317,955.86x = 76,659,446,684.07
  5. Step 5: Solve for x
    x = 76,659,446,684.07/317,955.86
  6. Step 6: Final answer
    x = 241,100.91

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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.