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Finding the Fourth Proportional to 162,557.92, 243,845.04 and 51,758.56

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Solution

The fourth proportional to 162,557.92, 243,845.04 and 51,758.56 is: 77,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,557.92 : 243,845.04 = 51,758.56 : x
  2. Step 2: Convert to fraction form
    162,557.92/243,845.04 = 51,758.56/x
  3. Step 3: Cross multiply
    162,557.92x = 243,845.04 × 51,758.56
  4. Step 4: Simplify right side
    162,557.92x = 12,621,068,133.54
  5. Step 5: Solve for x
    x = 12,621,068,133.54/162,557.92
  6. Step 6: Final answer
    x = 77,640.44

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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.