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Finding the Fourth Proportional to 159,871.94, 220,624.80 and 88,250.42

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Solution

The fourth proportional to 159,871.94, 220,624.80 and 88,250.42 is: 121,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,871.94 : 220,624.80 = 88,250.42 : x
  2. Step 2: Convert to fraction form
    159,871.94/220,624.80 = 88,250.42/x
  3. Step 3: Cross multiply
    159,871.94x = 220,624.80 × 88,250.42
  4. Step 4: Simplify right side
    159,871.94x = 19,470,230,159.29
  5. Step 5: Solve for x
    x = 19,470,230,159.29/159,871.94
  6. Step 6: Final answer
    x = 121,786.42

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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.