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Finding the Fourth Proportional to 77,668.92, 116,620.02 and 44,426.52

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Solution

The fourth proportional to 77,668.92, 116,620.02 and 44,426.52 is: 66,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668.92 : 116,620.02 = 44,426.52 : x
  2. Step 2: Convert to fraction form
    77,668.92/116,620.02 = 44,426.52/x
  3. Step 3: Cross multiply
    77,668.92x = 116,620.02 × 44,426.52
  4. Step 4: Simplify right side
    77,668.92x = 5,181,021,650.93
  5. Step 5: Solve for x
    x = 5,181,021,650.93/77,668.92
  6. Step 6: Final answer
    x = 66,706.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.