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Finding the Fourth Proportional to 45,202.80, 67,754.94 and 38,608.98

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Solution

The fourth proportional to 45,202.80, 67,754.94 and 38,608.98 is: 57,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,202.80 : 67,754.94 = 38,608.98 : x
  2. Step 2: Convert to fraction form
    45,202.80/67,754.94 = 38,608.98/x
  3. Step 3: Cross multiply
    45,202.80x = 67,754.94 × 38,608.98
  4. Step 4: Simplify right side
    45,202.80x = 2,615,949,123.36
  5. Step 5: Solve for x
    x = 2,615,949,123.36/45,202.80
  6. Step 6: Final answer
    x = 57,871.40

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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.