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Finding the Fourth Proportional to 187,596.31, 281,292.41 and 67,636.93

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Solution

The fourth proportional to 187,596.31, 281,292.41 and 67,636.93 is: 101,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,596.31 : 281,292.41 = 67,636.93 : x
  2. Step 2: Convert to fraction form
    187,596.31/281,292.41 = 67,636.93/x
  3. Step 3: Cross multiply
    187,596.31x = 281,292.41 × 67,636.93
  4. Step 4: Simplify right side
    187,596.31x = 19,025,754,706.52
  5. Step 5: Solve for x
    x = 19,025,754,706.52/187,596.31
  6. Step 6: Final answer
    x = 101,418.60

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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.