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Finding the Fourth Proportional to 159,873.53, 220,619.63 and 88,253.33

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Solution

The fourth proportional to 159,873.53, 220,619.63 and 88,253.33 is: 121,786.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,873.53 : 220,619.63 = 88,253.33 : x
  2. Step 2: Convert to fraction form
    159,873.53/220,619.63 = 88,253.33/x
  3. Step 3: Cross multiply
    159,873.53x = 220,619.63 × 88,253.33
  4. Step 4: Simplify right side
    159,873.53x = 19,470,416,128.40
  5. Step 5: Solve for x
    x = 19,470,416,128.40/159,873.53
  6. Step 6: Final answer
    x = 121,786.37

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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.