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Finding the Fourth Proportional to 108,580.65, 162,870.98 and 82,336.65

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Solution

The fourth proportional to 108,580.65, 162,870.98 and 82,336.65 is: 123,504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,580.65 : 162,870.98 = 82,336.65 : x
  2. Step 2: Convert to fraction form
    108,580.65/162,870.98 = 82,336.65/x
  3. Step 3: Cross multiply
    108,580.65x = 162,870.98 × 82,336.65
  4. Step 4: Simplify right side
    108,580.65x = 13,410,250,463.73
  5. Step 5: Solve for x
    x = 13,410,250,463.73/108,580.65
  6. Step 6: Final answer
    x = 123,504.98

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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.