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Finding the Fourth Proportional to 99,485.00, 149,133.69 and 49,517.86

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Solution

The fourth proportional to 99,485.00, 149,133.69 and 49,517.86 is: 74,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,485.00 : 149,133.69 = 49,517.86 : x
  2. Step 2: Convert to fraction form
    99,485.00/149,133.69 = 49,517.86/x
  3. Step 3: Cross multiply
    99,485.00x = 149,133.69 × 49,517.86
  4. Step 4: Simplify right side
    99,485.00x = 7,384,781,508.12
  5. Step 5: Solve for x
    x = 7,384,781,508.12/99,485.00
  6. Step 6: Final answer
    x = 74,230.10

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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.