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Finding the Fourth Proportional to 162,614.92, 243,959.43 and 87,733.66

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Solution

The fourth proportional to 162,614.92, 243,959.43 and 87,733.66 is: 131,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,614.92 : 243,959.43 = 87,733.66 : x
  2. Step 2: Convert to fraction form
    162,614.92/243,959.43 = 87,733.66/x
  3. Step 3: Cross multiply
    162,614.92x = 243,959.43 × 87,733.66
  4. Step 4: Simplify right side
    162,614.92x = 21,403,453,685.41
  5. Step 5: Solve for x
    x = 21,403,453,685.41/162,614.92
  6. Step 6: Final answer
    x = 131,620.48

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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.