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Finding the Fourth Proportional to 187,859.16, 281,799.99 and 61,512.72

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Solution

The fourth proportional to 187,859.16, 281,799.99 and 61,512.72 is: 92,272.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,859.16 : 281,799.99 = 61,512.72 : x
  2. Step 2: Convert to fraction form
    187,859.16/281,799.99 = 61,512.72/x
  3. Step 3: Cross multiply
    187,859.16x = 281,799.99 × 61,512.72
  4. Step 4: Simplify right side
    187,859.16x = 17,334,283,880.87
  5. Step 5: Solve for x
    x = 17,334,283,880.87/187,859.16
  6. Step 6: Final answer
    x = 92,272.76

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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.