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Finding the Fourth Proportional to 202,906.19, 304,356.20 and 69,787.60

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Solution

The fourth proportional to 202,906.19, 304,356.20 and 69,787.60 is: 104,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,906.19 : 304,356.20 = 69,787.60 : x
  2. Step 2: Convert to fraction form
    202,906.19/304,356.20 = 69,787.60/x
  3. Step 3: Cross multiply
    202,906.19x = 304,356.20 × 69,787.60
  4. Step 4: Simplify right side
    202,906.19x = 21,240,288,587.43
  5. Step 5: Solve for x
    x = 21,240,288,587.43/202,906.19
  6. Step 6: Final answer
    x = 104,680.34

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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.