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Finding the Fourth Proportional to 236,847.76, 326,846.01 and 129,415.48

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Solution

The fourth proportional to 236,847.76, 326,846.01 and 129,415.48 is: 178,591.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,847.76 : 326,846.01 = 129,415.48 : x
  2. Step 2: Convert to fraction form
    236,847.76/326,846.01 = 129,415.48/x
  3. Step 3: Cross multiply
    236,847.76x = 326,846.01 × 129,415.48
  4. Step 4: Simplify right side
    236,847.76x = 42,298,933,270.23
  5. Step 5: Solve for x
    x = 42,298,933,270.23/236,847.76
  6. Step 6: Final answer
    x = 178,591.23

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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.