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Finding the Fourth Proportional to 85,504.26, 117,993.47 and 47,778.51

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Solution

The fourth proportional to 85,504.26, 117,993.47 and 47,778.51 is: 65,933.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,504.26 : 117,993.47 = 47,778.51 : x
  2. Step 2: Convert to fraction form
    85,504.26/117,993.47 = 47,778.51/x
  3. Step 3: Cross multiply
    85,504.26x = 117,993.47 × 47,778.51
  4. Step 4: Simplify right side
    85,504.26x = 5,637,551,947.44
  5. Step 5: Solve for x
    x = 5,637,551,947.44/85,504.26
  6. Step 6: Final answer
    x = 65,933.00

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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.