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Finding the Fourth Proportional to 160,956.81, 241,672.22 and 90,018.43

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Solution

The fourth proportional to 160,956.81, 241,672.22 and 90,018.43 is: 135,160.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,956.81 : 241,672.22 = 90,018.43 : x
  2. Step 2: Convert to fraction form
    160,956.81/241,672.22 = 90,018.43/x
  3. Step 3: Cross multiply
    160,956.81x = 241,672.22 × 90,018.43
  4. Step 4: Simplify right side
    160,956.81x = 21,754,953,819.01
  5. Step 5: Solve for x
    x = 21,754,953,819.01/160,956.81
  6. Step 6: Final answer
    x = 135,160.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.