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Finding the Fourth Proportional to 159,891.44, 220,648.59 and 88,271.91

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Solution

The fourth proportional to 159,891.44, 220,648.59 and 88,271.91 is: 121,814.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,891.44 : 220,648.59 = 88,271.91 : x
  2. Step 2: Convert to fraction form
    159,891.44/220,648.59 = 88,271.91/x
  3. Step 3: Cross multiply
    159,891.44x = 220,648.59 × 88,271.91
  4. Step 4: Simplify right side
    159,891.44x = 19,477,072,478.11
  5. Step 5: Solve for x
    x = 19,477,072,478.11/159,891.44
  6. Step 6: Final answer
    x = 121,814.36

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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.