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Finding the Fourth Proportional to 318,194.50, 439,097.17 and 174,953.54

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Solution

The fourth proportional to 318,194.50, 439,097.17 and 174,953.54 is: 241,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,194.50 : 439,097.17 = 174,953.54 : x
  2. Step 2: Convert to fraction form
    318,194.50/439,097.17 = 174,953.54/x
  3. Step 3: Cross multiply
    318,194.50x = 439,097.17 × 174,953.54
  4. Step 4: Simplify right side
    318,194.50x = 76,821,604,295.48
  5. Step 5: Solve for x
    x = 76,821,604,295.48/318,194.50
  6. Step 6: Final answer
    x = 241,429.71

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1.5x scale

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.