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Finding the Fourth Proportional to 81,959.56, 113,102.94 and 46,149.48

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Solution

The fourth proportional to 81,959.56, 113,102.94 and 46,149.48 is: 63,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,959.56 : 113,102.94 = 46,149.48 : x
  2. Step 2: Convert to fraction form
    81,959.56/113,102.94 = 46,149.48/x
  3. Step 3: Cross multiply
    81,959.56x = 113,102.94 × 46,149.48
  4. Step 4: Simplify right side
    81,959.56x = 5,219,641,867.47
  5. Step 5: Solve for x
    x = 5,219,641,867.47/81,959.56
  6. Step 6: Final answer
    x = 63,685.58

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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.