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Finding the Fourth Proportional to 136,347.65, 204,563.15 and 69,834.84

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Solution

The fourth proportional to 136,347.65, 204,563.15 and 69,834.84 is: 104,773.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,347.65 : 204,563.15 = 69,834.84 : x
  2. Step 2: Convert to fraction form
    136,347.65/204,563.15 = 69,834.84/x
  3. Step 3: Cross multiply
    136,347.65x = 204,563.15 × 69,834.84
  4. Step 4: Simplify right side
    136,347.65x = 14,285,634,850.15
  5. Step 5: Solve for x
    x = 14,285,634,850.15/136,347.65
  6. Step 6: Final answer
    x = 104,773.61

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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.