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Finding the Fourth Proportional to 158,308.39, 218,504.02 and 97,842.62

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Solution

The fourth proportional to 158,308.39, 218,504.02 and 97,842.62 is: 135,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,308.39 : 218,504.02 = 97,842.62 : x
  2. Step 2: Convert to fraction form
    158,308.39/218,504.02 = 97,842.62/x
  3. Step 3: Cross multiply
    158,308.39x = 218,504.02 × 97,842.62
  4. Step 4: Simplify right side
    158,308.39x = 21,379,006,456.74
  5. Step 5: Solve for x
    x = 21,379,006,456.74/158,308.39
  6. Step 6: Final answer
    x = 135,046.58

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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.