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Finding the Fourth Proportional to 187,967.98, 281,959.71 and 61,615.36

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Solution

The fourth proportional to 187,967.98, 281,959.71 and 61,615.36 is: 92,425.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,967.98 : 281,959.71 = 61,615.36 : x
  2. Step 2: Convert to fraction form
    187,967.98/281,959.71 = 61,615.36/x
  3. Step 3: Cross multiply
    187,967.98x = 281,959.71 × 61,615.36
  4. Step 4: Simplify right side
    187,967.98x = 17,373,049,037.15
  5. Step 5: Solve for x
    x = 17,373,049,037.15/187,967.98
  6. Step 6: Final answer
    x = 92,425.58

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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.