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Finding the Fourth Proportional to 354,674.60, 531,137.10 and 235,701.80

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Solution

The fourth proportional to 354,674.60, 531,137.10 and 235,701.80 is: 352,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,674.60 : 531,137.10 = 235,701.80 : x
  2. Step 2: Convert to fraction form
    354,674.60/531,137.10 = 235,701.80/x
  3. Step 3: Cross multiply
    354,674.60x = 531,137.10 × 235,701.80
  4. Step 4: Simplify right side
    354,674.60x = 125,189,970,516.78
  5. Step 5: Solve for x
    x = 125,189,970,516.78/354,674.60
  6. Step 6: Final answer
    x = 352,971.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.