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Finding the Fourth Proportional to 235,135.80, 352,703.70 and 231,636.60

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Solution

The fourth proportional to 235,135.80, 352,703.70 and 231,636.60 is: 347,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,135.80 : 352,703.70 = 231,636.60 : x
  2. Step 2: Convert to fraction form
    235,135.80/352,703.70 = 231,636.60/x
  3. Step 3: Cross multiply
    235,135.80x = 352,703.70 × 231,636.60
  4. Step 4: Simplify right side
    235,135.80x = 81,699,085,875.42
  5. Step 5: Solve for x
    x = 81,699,085,875.42/235,135.80
  6. Step 6: Final answer
    x = 347,454.90

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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.