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Finding the Fourth Proportional to 158,493.84, 218,581.92 and 98,054.88

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Solution

The fourth proportional to 158,493.84, 218,581.92 and 98,054.88 is: 135,229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,493.84 : 218,581.92 = 98,054.88 : x
  2. Step 2: Convert to fraction form
    158,493.84/218,581.92 = 98,054.88/x
  3. Step 3: Cross multiply
    158,493.84x = 218,581.92 × 98,054.88
  4. Step 4: Simplify right side
    158,493.84x = 21,433,023,935.77
  5. Step 5: Solve for x
    x = 21,433,023,935.77/158,493.84
  6. Step 6: Final answer
    x = 135,229.38

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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.