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Finding the Fourth Proportional to 162,516.76, 224,273.66 and 90,898

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Solution

The fourth proportional to 162,516.76, 224,273.66 and 90,898 is: 125,439.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,516.76 : 224,273.66 = 90,898 : x
  2. Step 2: Convert to fraction form
    162,516.76/224,273.66 = 90,898/x
  3. Step 3: Cross multiply
    162,516.76x = 224,273.66 × 90,898
  4. Step 4: Simplify right side
    162,516.76x = 20,386,027,146.68
  5. Step 5: Solve for x
    x = 20,386,027,146.68/162,516.76
  6. Step 6: Final answer
    x = 125,439.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.