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Finding the Fourth Proportional to 80,107.92, 110,421.54 and 63,085.14

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Solution

The fourth proportional to 80,107.92, 110,421.54 and 63,085.14 is: 86,957.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,107.92 : 110,421.54 = 63,085.14 : x
  2. Step 2: Convert to fraction form
    80,107.92/110,421.54 = 63,085.14/x
  3. Step 3: Cross multiply
    80,107.92x = 110,421.54 × 63,085.14
  4. Step 4: Simplify right side
    80,107.92x = 6,965,958,309.92
  5. Step 5: Solve for x
    x = 6,965,958,309.92/80,107.92
  6. Step 6: Final answer
    x = 86,957.17

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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.