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Finding the Fourth Proportional to 162,160.83, 243,351.99 and 56,979.81

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Solution

The fourth proportional to 162,160.83, 243,351.99 and 56,979.81 is: 85,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,160.83 : 243,351.99 = 56,979.81 : x
  2. Step 2: Convert to fraction form
    162,160.83/243,351.99 = 56,979.81/x
  3. Step 3: Cross multiply
    162,160.83x = 243,351.99 × 56,979.81
  4. Step 4: Simplify right side
    162,160.83x = 13,866,150,153.32
  5. Step 5: Solve for x
    x = 13,866,150,153.32/162,160.83
  6. Step 6: Final answer
    x = 85,508.63

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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.