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Finding the Fourth Proportional to 86,048.22, 118,745.68 and 47,286.68

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Solution

The fourth proportional to 86,048.22, 118,745.68 and 47,286.68 is: 65,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,048.22 : 118,745.68 = 47,286.68 : x
  2. Step 2: Convert to fraction form
    86,048.22/118,745.68 = 47,286.68/x
  3. Step 3: Cross multiply
    86,048.22x = 118,745.68 × 47,286.68
  4. Step 4: Simplify right side
    86,048.22x = 5,615,088,735.11
  5. Step 5: Solve for x
    x = 5,615,088,735.11/86,048.22
  6. Step 6: Final answer
    x = 65,255.14

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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.