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Finding the Fourth Proportional to 158,497.10, 218,748.41 and 98,087.21

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Solution

The fourth proportional to 158,497.10, 218,748.41 and 98,087.21 is: 135,374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,497.10 : 218,748.41 = 98,087.21 : x
  2. Step 2: Convert to fraction form
    158,497.10/218,748.41 = 98,087.21/x
  3. Step 3: Cross multiply
    158,497.10x = 218,748.41 × 98,087.21
  4. Step 4: Simplify right side
    158,497.10x = 21,456,419,644.66
  5. Step 5: Solve for x
    x = 21,456,419,644.66/158,497.10
  6. Step 6: Final answer
    x = 135,374.21

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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.