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Finding the Fourth Proportional to 92,016.78, 138,024.87 and 28,841.70

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Solution

The fourth proportional to 92,016.78, 138,024.87 and 28,841.70 is: 43,262.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,016.78 : 138,024.87 = 28,841.70 : x
  2. Step 2: Convert to fraction form
    92,016.78/138,024.87 = 28,841.70/x
  3. Step 3: Cross multiply
    92,016.78x = 138,024.87 × 28,841.70
  4. Step 4: Simplify right side
    92,016.78x = 3,980,871,893.08
  5. Step 5: Solve for x
    x = 3,980,871,893.08/92,016.78
  6. Step 6: Final answer
    x = 43,262.46

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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.