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Finding the Fourth Proportional to 115,893.40, 173,796.90 and 45,758.20

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Solution

The fourth proportional to 115,893.40, 173,796.90 and 45,758.20 is: 68,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,893.40 : 173,796.90 = 45,758.20 : x
  2. Step 2: Convert to fraction form
    115,893.40/173,796.90 = 45,758.20/x
  3. Step 3: Cross multiply
    115,893.40x = 173,796.90 × 45,758.20
  4. Step 4: Simplify right side
    115,893.40x = 7,952,633,309.58
  5. Step 5: Solve for x
    x = 7,952,633,309.58/115,893.40
  6. Step 6: Final answer
    x = 68,620.24

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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.