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Finding the Fourth Proportional to 159,976.04, 220,771.86 and 88,360.70

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Solution

The fourth proportional to 159,976.04, 220,771.86 and 88,360.70 is: 121,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,976.04 : 220,771.86 = 88,360.70 : x
  2. Step 2: Convert to fraction form
    159,976.04/220,771.86 = 88,360.70/x
  3. Step 3: Cross multiply
    159,976.04x = 220,771.86 × 88,360.70
  4. Step 4: Simplify right side
    159,976.04x = 19,507,556,089.90
  5. Step 5: Solve for x
    x = 19,507,556,089.90/159,976.04
  6. Step 6: Final answer
    x = 121,940.49

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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.