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Finding the Fourth Proportional to 225,905.52, 338,860.71 and 68,135.34

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Solution

The fourth proportional to 225,905.52, 338,860.71 and 68,135.34 is: 102,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,905.52 : 338,860.71 = 68,135.34 : x
  2. Step 2: Convert to fraction form
    225,905.52/338,860.71 = 68,135.34/x
  3. Step 3: Cross multiply
    225,905.52x = 338,860.71 × 68,135.34
  4. Step 4: Simplify right side
    225,905.52x = 23,088,389,688.49
  5. Step 5: Solve for x
    x = 23,088,389,688.49/225,905.52
  6. Step 6: Final answer
    x = 102,203.74

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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.