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Finding the Fourth Proportional to 257,235.26, 354,986.15 and 142,517.52

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Solution

The fourth proportional to 257,235.26, 354,986.15 and 142,517.52 is: 196,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,235.26 : 354,986.15 = 142,517.52 : x
  2. Step 2: Convert to fraction form
    257,235.26/354,986.15 = 142,517.52/x
  3. Step 3: Cross multiply
    257,235.26x = 354,986.15 × 142,517.52
  4. Step 4: Simplify right side
    257,235.26x = 50,591,745,019.76
  5. Step 5: Solve for x
    x = 50,591,745,019.76/257,235.26
  6. Step 6: Final answer
    x = 196,675.00

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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.