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Finding the Fourth Proportional to 159,956.53, 220,733.97 and 87,357.01

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Solution

The fourth proportional to 159,956.53, 220,733.97 and 87,357.01 is: 120,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,956.53 : 220,733.97 = 87,357.01 : x
  2. Step 2: Convert to fraction form
    159,956.53/220,733.97 = 87,357.01/x
  3. Step 3: Cross multiply
    159,956.53x = 220,733.97 × 87,357.01
  4. Step 4: Simplify right side
    159,956.53x = 19,282,659,624.63
  5. Step 5: Solve for x
    x = 19,282,659,624.63/159,956.53
  6. Step 6: Final answer
    x = 120,549.37

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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.