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Finding the Fourth Proportional to 192,177.80, 287,877.90 and 133,080.20

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Solution

The fourth proportional to 192,177.80, 287,877.90 and 133,080.20 is: 199,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,177.80 : 287,877.90 = 133,080.20 : x
  2. Step 2: Convert to fraction form
    192,177.80/287,877.90 = 133,080.20/x
  3. Step 3: Cross multiply
    192,177.80x = 287,877.90 × 133,080.20
  4. Step 4: Simplify right side
    192,177.80x = 38,310,848,507.58
  5. Step 5: Solve for x
    x = 38,310,848,507.58/192,177.80
  6. Step 6: Final answer
    x = 199,351.06

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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.