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Finding the Fourth Proportional to 138,521.97, 207,783.02 and 33,340.94

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Solution

The fourth proportional to 138,521.97, 207,783.02 and 33,340.94 is: 50,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,521.97 : 207,783.02 = 33,340.94 : x
  2. Step 2: Convert to fraction form
    138,521.97/207,783.02 = 33,340.94/x
  3. Step 3: Cross multiply
    138,521.97x = 207,783.02 × 33,340.94
  4. Step 4: Simplify right side
    138,521.97x = 6,927,681,202.84
  5. Step 5: Solve for x
    x = 6,927,681,202.84/138,521.97
  6. Step 6: Final answer
    x = 50,011.43

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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.