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Finding the Fourth Proportional to 86,489.56, 119,355.54 and 46,745.56

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Solution

The fourth proportional to 86,489.56, 119,355.54 and 46,745.56 is: 64,508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,489.56 : 119,355.54 = 46,745.56 : x
  2. Step 2: Convert to fraction form
    86,489.56/119,355.54 = 46,745.56/x
  3. Step 3: Cross multiply
    86,489.56x = 119,355.54 × 46,745.56
  4. Step 4: Simplify right side
    86,489.56x = 5,579,341,556.40
  5. Step 5: Solve for x
    x = 5,579,341,556.40/86,489.56
  6. Step 6: Final answer
    x = 64,508.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.