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Finding the Fourth Proportional to 106,179.84, 146,520.63 and 63,156.96

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Solution

The fourth proportional to 106,179.84, 146,520.63 and 63,156.96 is: 87,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,179.84 : 146,520.63 = 63,156.96 : x
  2. Step 2: Convert to fraction form
    106,179.84/146,520.63 = 63,156.96/x
  3. Step 3: Cross multiply
    106,179.84x = 146,520.63 × 63,156.96
  4. Step 4: Simplify right side
    106,179.84x = 9,253,797,568.08
  5. Step 5: Solve for x
    x = 9,253,797,568.08/106,179.84
  6. Step 6: Final answer
    x = 87,152.11

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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.