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Finding the Fourth Proportional to 115,999.80, 173,859.30 and 49,299.90

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Solution

The fourth proportional to 115,999.80, 173,859.30 and 49,299.90 is: 73,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,999.80 : 173,859.30 = 49,299.90 : x
  2. Step 2: Convert to fraction form
    115,999.80/173,859.30 = 49,299.90/x
  3. Step 3: Cross multiply
    115,999.80x = 173,859.30 × 49,299.90
  4. Step 4: Simplify right side
    115,999.80x = 8,571,246,104.07
  5. Step 5: Solve for x
    x = 8,571,246,104.07/115,999.80
  6. Step 6: Final answer
    x = 73,890.18

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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.