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Finding the Fourth Proportional to 162,641.25, 224,446.05 and 91,027.89

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Solution

The fourth proportional to 162,641.25, 224,446.05 and 91,027.89 is: 125,619.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,641.25 : 224,446.05 = 91,027.89 : x
  2. Step 2: Convert to fraction form
    162,641.25/224,446.05 = 91,027.89/x
  3. Step 3: Cross multiply
    162,641.25x = 224,446.05 × 91,027.89
  4. Step 4: Simplify right side
    162,641.25x = 20,430,850,350.33
  5. Step 5: Solve for x
    x = 20,430,850,350.33/162,641.25
  6. Step 6: Final answer
    x = 125,619.12

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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.