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Finding the Fourth Proportional to 85,323.96, 117,750.30 and 47,605.56

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Solution

The fourth proportional to 85,323.96, 117,750.30 and 47,605.56 is: 65,697.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,323.96 : 117,750.30 = 47,605.56 : x
  2. Step 2: Convert to fraction form
    85,323.96/117,750.30 = 47,605.56/x
  3. Step 3: Cross multiply
    85,323.96x = 117,750.30 × 47,605.56
  4. Step 4: Simplify right side
    85,323.96x = 5,605,568,971.67
  5. Step 5: Solve for x
    x = 5,605,568,971.67/85,323.96
  6. Step 6: Final answer
    x = 65,697.48

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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.