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Finding the Fourth Proportional to 235,205.28, 324,589.20 and 127,775.28

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Solution

The fourth proportional to 235,205.28, 324,589.20 and 127,775.28 is: 176,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,205.28 : 324,589.20 = 127,775.28 : x
  2. Step 2: Convert to fraction form
    235,205.28/324,589.20 = 127,775.28/x
  3. Step 3: Cross multiply
    235,205.28x = 324,589.20 × 127,775.28
  4. Step 4: Simplify right side
    235,205.28x = 41,474,475,914.98
  5. Step 5: Solve for x
    x = 41,474,475,914.98/235,205.28
  6. Step 6: Final answer
    x = 176,333.10

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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.