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Finding the Fourth Proportional to 187,185.33, 280,482.75 and 68,693.67

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Solution

The fourth proportional to 187,185.33, 280,482.75 and 68,693.67 is: 102,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,185.33 : 280,482.75 = 68,693.67 : x
  2. Step 2: Convert to fraction form
    187,185.33/280,482.75 = 68,693.67/x
  3. Step 3: Cross multiply
    187,185.33x = 280,482.75 × 68,693.67
  4. Step 4: Simplify right side
    187,185.33x = 19,267,389,469.19
  5. Step 5: Solve for x
    x = 19,267,389,469.19/187,185.33
  6. Step 6: Final answer
    x = 102,932.16

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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.