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Finding the Fourth Proportional to 187,859.64, 281,832.66 and 61,503.96

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Solution

The fourth proportional to 187,859.64, 281,832.66 and 61,503.96 is: 92,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,859.64 : 281,832.66 = 61,503.96 : x
  2. Step 2: Convert to fraction form
    187,859.64/281,832.66 = 61,503.96/x
  3. Step 3: Cross multiply
    187,859.64x = 281,832.66 × 61,503.96
  4. Step 4: Simplify right side
    187,859.64x = 17,333,824,647.33
  5. Step 5: Solve for x
    x = 17,333,824,647.33/187,859.64
  6. Step 6: Final answer
    x = 92,270.08

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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.