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Finding the Fourth Proportional to 187,412.75, 281,118.90 and 61,052.79

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Solution

The fourth proportional to 187,412.75, 281,118.90 and 61,052.79 is: 91,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,412.75 : 281,118.90 = 61,052.79 : x
  2. Step 2: Convert to fraction form
    187,412.75/281,118.90 = 61,052.79/x
  3. Step 3: Cross multiply
    187,412.75x = 281,118.90 × 61,052.79
  4. Step 4: Simplify right side
    187,412.75x = 17,163,092,861.47
  5. Step 5: Solve for x
    x = 17,163,092,861.47/187,412.75
  6. Step 6: Final answer
    x = 91,579.11

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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.