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Finding the Fourth Proportional to 158,517.66, 218,795.73 and 98,053.14

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Solution

The fourth proportional to 158,517.66, 218,795.73 and 98,053.14 is: 135,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,517.66 : 218,795.73 = 98,053.14 : x
  2. Step 2: Convert to fraction form
    158,517.66/218,795.73 = 98,053.14/x
  3. Step 3: Cross multiply
    158,517.66x = 218,795.73 × 98,053.14
  4. Step 4: Simplify right side
    158,517.66x = 21,453,608,345.09
  5. Step 5: Solve for x
    x = 21,453,608,345.09/158,517.66
  6. Step 6: Final answer
    x = 135,338.92

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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.