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Finding the Fourth Proportional to 73,012.33, 100,802.63 and 55,983.86

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Solution

The fourth proportional to 73,012.33, 100,802.63 and 55,983.86 is: 77,292.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,012.33 : 100,802.63 = 55,983.86 : x
  2. Step 2: Convert to fraction form
    73,012.33/100,802.63 = 55,983.86/x
  3. Step 3: Cross multiply
    73,012.33x = 100,802.63 × 55,983.86
  4. Step 4: Simplify right side
    73,012.33x = 5,643,319,541.62
  5. Step 5: Solve for x
    x = 5,643,319,541.62/73,012.33
  6. Step 6: Final answer
    x = 77,292.69

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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.