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Finding the Fourth Proportional to 161,300.96, 241,956.84 and 56,120.80

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Solution

The fourth proportional to 161,300.96, 241,956.84 and 56,120.80 is: 84,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,300.96 : 241,956.84 = 56,120.80 : x
  2. Step 2: Convert to fraction form
    161,300.96/241,956.84 = 56,120.80/x
  3. Step 3: Cross multiply
    161,300.96x = 241,956.84 × 56,120.80
  4. Step 4: Simplify right side
    161,300.96x = 13,578,811,426.27
  5. Step 5: Solve for x
    x = 13,578,811,426.27/161,300.96
  6. Step 6: Final answer
    x = 84,183.08

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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.