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Finding the Fourth Proportional to 159,911.82, 220,676.82 and 88,292.36

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Solution

The fourth proportional to 159,911.82, 220,676.82 and 88,292.36 is: 121,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,911.82 : 220,676.82 = 88,292.36 : x
  2. Step 2: Convert to fraction form
    159,911.82/220,676.82 = 88,292.36/x
  3. Step 3: Cross multiply
    159,911.82x = 220,676.82 × 88,292.36
  4. Step 4: Simplify right side
    159,911.82x = 19,484,076,131.71
  5. Step 5: Solve for x
    x = 19,484,076,131.71/159,911.82
  6. Step 6: Final answer
    x = 121,842.63

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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.