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Finding the Fourth Proportional to 164,887.80, 247,331.70 and 131,062.20

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Solution

The fourth proportional to 164,887.80, 247,331.70 and 131,062.20 is: 196,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,887.80 : 247,331.70 = 131,062.20 : x
  2. Step 2: Convert to fraction form
    164,887.80/247,331.70 = 131,062.20/x
  3. Step 3: Cross multiply
    164,887.80x = 247,331.70 × 131,062.20
  4. Step 4: Simplify right side
    164,887.80x = 32,415,836,731.74
  5. Step 5: Solve for x
    x = 32,415,836,731.74/164,887.80
  6. Step 6: Final answer
    x = 196,593.30

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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.