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Finding the Fourth Proportional to 202,976.40, 304,205.40 and 155,996.40

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Solution

The fourth proportional to 202,976.40, 304,205.40 and 155,996.40 is: 233,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,976.40 : 304,205.40 = 155,996.40 : x
  2. Step 2: Convert to fraction form
    202,976.40/304,205.40 = 155,996.40/x
  3. Step 3: Cross multiply
    202,976.40x = 304,205.40 × 155,996.40
  4. Step 4: Simplify right side
    202,976.40x = 47,454,947,260.56
  5. Step 5: Solve for x
    x = 47,454,947,260.56/202,976.40
  6. Step 6: Final answer
    x = 233,795.39

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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.