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Finding the Fourth Proportional to 235,042.80, 352,564.20 and 231,543.60

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Solution

The fourth proportional to 235,042.80, 352,564.20 and 231,543.60 is: 347,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,042.80 : 352,564.20 = 231,543.60 : x
  2. Step 2: Convert to fraction form
    235,042.80/352,564.20 = 231,543.60/x
  3. Step 3: Cross multiply
    235,042.80x = 352,564.20 × 231,543.60
  4. Step 4: Simplify right side
    235,042.80x = 81,633,984,099.12
  5. Step 5: Solve for x
    x = 81,633,984,099.12/235,042.80
  6. Step 6: Final answer
    x = 347,315.40

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1.5x scale

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.