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Finding the Fourth Proportional to 92,099.49, 138,610.56 and 82,928.45

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Solution

The fourth proportional to 92,099.49, 138,610.56 and 82,928.45 is: 124,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,099.49 : 138,610.56 = 82,928.45 : x
  2. Step 2: Convert to fraction form
    92,099.49/138,610.56 = 82,928.45/x
  3. Step 3: Cross multiply
    92,099.49x = 138,610.56 × 82,928.45
  4. Step 4: Simplify right side
    92,099.49x = 11,494,758,201.38
  5. Step 5: Solve for x
    x = 11,494,758,201.38/92,099.49
  6. Step 6: Final answer
    x = 124,808.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.