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Finding the Fourth Proportional to 162,488.25, 224,231.90 and 90,867.60

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Solution

The fourth proportional to 162,488.25, 224,231.90 and 90,867.60 is: 125,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,488.25 : 224,231.90 = 90,867.60 : x
  2. Step 2: Convert to fraction form
    162,488.25/224,231.90 = 90,867.60/x
  3. Step 3: Cross multiply
    162,488.25x = 224,231.90 × 90,867.60
  4. Step 4: Simplify right side
    162,488.25x = 20,375,414,142.10
  5. Step 5: Solve for x
    x = 20,375,414,142.10/162,488.25
  6. Step 6: Final answer
    x = 125,396.23

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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.