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Finding the Fourth Proportional to 123,377.40, 185,066.10 and 91,884.60

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Solution

The fourth proportional to 123,377.40, 185,066.10 and 91,884.60 is: 137,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,377.40 : 185,066.10 = 91,884.60 : x
  2. Step 2: Convert to fraction form
    123,377.40/185,066.10 = 91,884.60/x
  3. Step 3: Cross multiply
    123,377.40x = 185,066.10 × 91,884.60
  4. Step 4: Simplify right side
    123,377.40x = 17,004,724,572.06
  5. Step 5: Solve for x
    x = 17,004,724,572.06/123,377.40
  6. Step 6: Final answer
    x = 137,826.90

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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.