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Finding the Fourth Proportional to 123,992.40, 185,883.46 and 49,165.40

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Solution

The fourth proportional to 123,992.40, 185,883.46 and 49,165.40 is: 73,706.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,992.40 : 185,883.46 = 49,165.40 : x
  2. Step 2: Convert to fraction form
    123,992.40/185,883.46 = 49,165.40/x
  3. Step 3: Cross multiply
    123,992.40x = 185,883.46 × 49,165.40
  4. Step 4: Simplify right side
    123,992.40x = 9,139,034,664.28
  5. Step 5: Solve for x
    x = 9,139,034,664.28/123,992.40
  6. Step 6: Final answer
    x = 73,706.41

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1.5x scale

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.