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Finding the Fourth Proportional to 81,912.34, 113,042.68 and 46,104.68

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Solution

The fourth proportional to 81,912.34, 113,042.68 and 46,104.68 is: 63,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,912.34 : 113,042.68 = 46,104.68 : x
  2. Step 2: Convert to fraction form
    81,912.34/113,042.68 = 46,104.68/x
  3. Step 3: Cross multiply
    81,912.34x = 113,042.68 × 46,104.68
  4. Step 4: Simplify right side
    81,912.34x = 5,211,796,587.74
  5. Step 5: Solve for x
    x = 5,211,796,587.74/81,912.34
  6. Step 6: Final answer
    x = 63,626.51

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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.