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Finding the Fourth Proportional to 114,309.44, 171,462.88 and 40,420.16

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Solution

The fourth proportional to 114,309.44, 171,462.88 and 40,420.16 is: 60,629.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,309.44 : 171,462.88 = 40,420.16 : x
  2. Step 2: Convert to fraction form
    114,309.44/171,462.88 = 40,420.16/x
  3. Step 3: Cross multiply
    114,309.44x = 171,462.88 × 40,420.16
  4. Step 4: Simplify right side
    114,309.44x = 6,930,557,043.66
  5. Step 5: Solve for x
    x = 6,930,557,043.66/114,309.44
  6. Step 6: Final answer
    x = 60,629.79

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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.