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Finding the Fourth Proportional to 123,727.40, 185,591.10 and 92,623.40

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Solution

The fourth proportional to 123,727.40, 185,591.10 and 92,623.40 is: 138,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,727.40 : 185,591.10 = 92,623.40 : x
  2. Step 2: Convert to fraction form
    123,727.40/185,591.10 = 92,623.40/x
  3. Step 3: Cross multiply
    123,727.40x = 185,591.10 × 92,623.40
  4. Step 4: Simplify right side
    123,727.40x = 17,190,078,691.74
  5. Step 5: Solve for x
    x = 17,190,078,691.74/123,727.40
  6. Step 6: Final answer
    x = 138,935.10

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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.