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Finding the Fourth Proportional to 79,768.94, 110,079.73 and 43,470.71

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Solution

The fourth proportional to 79,768.94, 110,079.73 and 43,470.71 is: 59,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.94 : 110,079.73 = 43,470.71 : x
  2. Step 2: Convert to fraction form
    79,768.94/110,079.73 = 43,470.71/x
  3. Step 3: Cross multiply
    79,768.94x = 110,079.73 × 43,470.71
  4. Step 4: Simplify right side
    79,768.94x = 4,785,243,802.35
  5. Step 5: Solve for x
    x = 4,785,243,802.35/79,768.94
  6. Step 6: Final answer
    x = 59,988.81

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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.