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Finding the Fourth Proportional to 98,943.68, 136,558.44 and 73,618.22

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Solution

The fourth proportional to 98,943.68, 136,558.44 and 73,618.22 is: 101,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,943.68 : 136,558.44 = 73,618.22 : x
  2. Step 2: Convert to fraction form
    98,943.68/136,558.44 = 73,618.22/x
  3. Step 3: Cross multiply
    98,943.68x = 136,558.44 × 73,618.22
  4. Step 4: Simplify right side
    98,943.68x = 10,053,189,278.78
  5. Step 5: Solve for x
    x = 10,053,189,278.78/98,943.68
  6. Step 6: Final answer
    x = 101,605.17

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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.