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Finding the Fourth Proportional to 187,751.88, 281,690.64 and 61,397.94

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Solution

The fourth proportional to 187,751.88, 281,690.64 and 61,397.94 is: 92,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,751.88 : 281,690.64 = 61,397.94 : x
  2. Step 2: Convert to fraction form
    187,751.88/281,690.64 = 61,397.94/x
  3. Step 3: Cross multiply
    187,751.88x = 281,690.64 × 61,397.94
  4. Step 4: Simplify right side
    187,751.88x = 17,295,225,013.28
  5. Step 5: Solve for x
    x = 17,295,225,013.28/187,751.88
  6. Step 6: Final answer
    x = 92,117.45

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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.