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Finding the Fourth Proportional to 80,965.94, 111,732.65 and 44,666.40

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Solution

The fourth proportional to 80,965.94, 111,732.65 and 44,666.40 is: 61,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,965.94 : 111,732.65 = 44,666.40 : x
  2. Step 2: Convert to fraction form
    80,965.94/111,732.65 = 44,666.40/x
  3. Step 3: Cross multiply
    80,965.94x = 111,732.65 × 44,666.40
  4. Step 4: Simplify right side
    80,965.94x = 4,990,695,014.63
  5. Step 5: Solve for x
    x = 4,990,695,014.63/80,965.94
  6. Step 6: Final answer
    x = 61,639.44

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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.