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Finding the Fourth Proportional to 162,260.73, 223,919.81 and 90,640.76

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Solution

The fourth proportional to 162,260.73, 223,919.81 and 90,640.76 is: 125,084.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,260.73 : 223,919.81 = 90,640.76 : x
  2. Step 2: Convert to fraction form
    162,260.73/223,919.81 = 90,640.76/x
  3. Step 3: Cross multiply
    162,260.73x = 223,919.81 × 90,640.76
  4. Step 4: Simplify right side
    162,260.73x = 20,296,260,184.65
  5. Step 5: Solve for x
    x = 20,296,260,184.65/162,260.73
  6. Step 6: Final answer
    x = 125,084.24

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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.