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Finding the Fourth Proportional to 79,802.16, 110,127.75 and 43,993.45

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Solution

The fourth proportional to 79,802.16, 110,127.75 and 43,993.45 is: 60,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,802.16 : 110,127.75 = 43,993.45 : x
  2. Step 2: Convert to fraction form
    79,802.16/110,127.75 = 43,993.45/x
  3. Step 3: Cross multiply
    79,802.16x = 110,127.75 × 43,993.45
  4. Step 4: Simplify right side
    79,802.16x = 4,844,899,443.27
  5. Step 5: Solve for x
    x = 4,844,899,443.27/79,802.16
  6. Step 6: Final answer
    x = 60,711.39

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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.