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Finding the Fourth Proportional to 317,391.95, 437,986.24 and 174,148.43

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Solution

The fourth proportional to 317,391.95, 437,986.24 and 174,148.43 is: 240,316.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,391.95 : 437,986.24 = 174,148.43 : x
  2. Step 2: Convert to fraction form
    317,391.95/437,986.24 = 174,148.43/x
  3. Step 3: Cross multiply
    317,391.95x = 437,986.24 × 174,148.43
  4. Step 4: Simplify right side
    317,391.95x = 76,274,615,186.86
  5. Step 5: Solve for x
    x = 76,274,615,186.86/317,391.95
  6. Step 6: Final answer
    x = 240,316.79

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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.