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Finding the Fourth Proportional to 275,506.74, 412,871.31 and 117,679.86

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Solution

The fourth proportional to 275,506.74, 412,871.31 and 117,679.86 is: 176,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,506.74 : 412,871.31 = 117,679.86 : x
  2. Step 2: Convert to fraction form
    275,506.74/412,871.31 = 117,679.86/x
  3. Step 3: Cross multiply
    275,506.74x = 412,871.31 × 117,679.86
  4. Step 4: Simplify right side
    275,506.74x = 48,586,637,958.82
  5. Step 5: Solve for x
    x = 48,586,637,958.82/275,506.74
  6. Step 6: Final answer
    x = 176,353.72

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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.