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Finding the Fourth Proportional to 159,347.64, 219,937.17 and 91,363.38

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Solution

The fourth proportional to 159,347.64, 219,937.17 and 91,363.38 is: 126,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,347.64 : 219,937.17 = 91,363.38 : x
  2. Step 2: Convert to fraction form
    159,347.64/219,937.17 = 91,363.38/x
  3. Step 3: Cross multiply
    159,347.64x = 219,937.17 × 91,363.38
  4. Step 4: Simplify right side
    159,347.64x = 20,094,203,238.83
  5. Step 5: Solve for x
    x = 20,094,203,238.83/159,347.64
  6. Step 6: Final answer
    x = 126,102.92

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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.