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Finding the Fourth Proportional to 106,321.55, 159,453.16 and 39,739.55

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Solution

The fourth proportional to 106,321.55, 159,453.16 and 39,739.55 is: 59,598.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,321.55 : 159,453.16 = 39,739.55 : x
  2. Step 2: Convert to fraction form
    106,321.55/159,453.16 = 39,739.55/x
  3. Step 3: Cross multiply
    106,321.55x = 159,453.16 × 39,739.55
  4. Step 4: Simplify right side
    106,321.55x = 6,336,595,927.86
  5. Step 5: Solve for x
    x = 6,336,595,927.86/106,321.55
  6. Step 6: Final answer
    x = 59,598.42

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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.