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Finding the Fourth Proportional to 195,754.40, 293,631.60 and 71,079.20

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Solution

The fourth proportional to 195,754.40, 293,631.60 and 71,079.20 is: 106,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,754.40 : 293,631.60 = 71,079.20 : x
  2. Step 2: Convert to fraction form
    195,754.40/293,631.60 = 71,079.20/x
  3. Step 3: Cross multiply
    195,754.40x = 293,631.60 × 71,079.20
  4. Step 4: Simplify right side
    195,754.40x = 20,871,099,222.72
  5. Step 5: Solve for x
    x = 20,871,099,222.72/195,754.40
  6. Step 6: Final answer
    x = 106,618.80

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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.