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Finding the Fourth Proportional to 81,876.87, 112,983.96 and 46,059.96

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Solution

The fourth proportional to 81,876.87, 112,983.96 and 46,059.96 is: 63,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,876.87 : 112,983.96 = 46,059.96 : x
  2. Step 2: Convert to fraction form
    81,876.87/112,983.96 = 46,059.96/x
  3. Step 3: Cross multiply
    81,876.87x = 112,983.96 × 46,059.96
  4. Step 4: Simplify right side
    81,876.87x = 5,204,036,678.24
  5. Step 5: Solve for x
    x = 5,204,036,678.24/81,876.87
  6. Step 6: Final answer
    x = 63,559.30

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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.