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Finding the Fourth Proportional to 187,408.63, 281,142.17 and 61,019.03

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Solution

The fourth proportional to 187,408.63, 281,142.17 and 61,019.03 is: 91,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,408.63 : 281,142.17 = 61,019.03 : x
  2. Step 2: Convert to fraction form
    187,408.63/281,142.17 = 61,019.03/x
  3. Step 3: Cross multiply
    187,408.63x = 281,142.17 × 61,019.03
  4. Step 4: Simplify right side
    187,408.63x = 17,155,020,794.69
  5. Step 5: Solve for x
    x = 17,155,020,794.69/187,408.63
  6. Step 6: Final answer
    x = 91,538.05

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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.