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Finding the Fourth Proportional to 130,398.33, 179,954.12 and 73,040.12

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Solution

The fourth proportional to 130,398.33, 179,954.12 and 73,040.12 is: 100,797.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,398.33 : 179,954.12 = 73,040.12 : x
  2. Step 2: Convert to fraction form
    130,398.33/179,954.12 = 73,040.12/x
  3. Step 3: Cross multiply
    130,398.33x = 179,954.12 × 73,040.12
  4. Step 4: Simplify right side
    130,398.33x = 13,143,869,802.12
  5. Step 5: Solve for x
    x = 13,143,869,802.12/130,398.33
  6. Step 6: Final answer
    x = 100,797.84

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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.