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Finding the Fourth Proportional to 191,754.21, 264,629.85 and 106,871.88

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Solution

The fourth proportional to 191,754.21, 264,629.85 and 106,871.88 is: 147,488.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,754.21 : 264,629.85 = 106,871.88 : x
  2. Step 2: Convert to fraction form
    191,754.21/264,629.85 = 106,871.88/x
  3. Step 3: Cross multiply
    191,754.21x = 264,629.85 × 106,871.88
  4. Step 4: Simplify right side
    191,754.21x = 28,281,489,573.62
  5. Step 5: Solve for x
    x = 28,281,489,573.62/191,754.21
  6. Step 6: Final answer
    x = 147,488.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.