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Finding the Fourth Proportional to 159,207.84, 219,738.24 and 91,270.44

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Solution

The fourth proportional to 159,207.84, 219,738.24 and 91,270.44 is: 125,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,207.84 : 219,738.24 = 91,270.44 : x
  2. Step 2: Convert to fraction form
    159,207.84/219,738.24 = 91,270.44/x
  3. Step 3: Cross multiply
    159,207.84x = 219,738.24 × 91,270.44
  4. Step 4: Simplify right side
    159,207.84x = 20,055,605,849.63
  5. Step 5: Solve for x
    x = 20,055,605,849.63/159,207.84
  6. Step 6: Final answer
    x = 125,971.22

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1.5x scale

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.