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Finding the Fourth Proportional to 187,758.88, 281,635.20 and 45,605.32

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Solution

The fourth proportional to 187,758.88, 281,635.20 and 45,605.32 is: 68,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,758.88 : 281,635.20 = 45,605.32 : x
  2. Step 2: Convert to fraction form
    187,758.88/281,635.20 = 45,605.32/x
  3. Step 3: Cross multiply
    187,758.88x = 281,635.20 × 45,605.32
  4. Step 4: Simplify right side
    187,758.88x = 12,844,063,419.26
  5. Step 5: Solve for x
    x = 12,844,063,419.26/187,758.88
  6. Step 6: Final answer
    x = 68,407.22

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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.