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Finding the Fourth Proportional to 159,732.88, 220,431.99 and 88,111.87

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Solution

The fourth proportional to 159,732.88, 220,431.99 and 88,111.87 is: 121,594.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,732.88 : 220,431.99 = 88,111.87 : x
  2. Step 2: Convert to fraction form
    159,732.88/220,431.99 = 88,111.87/x
  3. Step 3: Cross multiply
    159,732.88x = 220,431.99 × 88,111.87
  4. Step 4: Simplify right side
    159,732.88x = 19,422,674,846.72
  5. Step 5: Solve for x
    x = 19,422,674,846.72/159,732.88
  6. Step 6: Final answer
    x = 121,594.72

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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.