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Finding the Fourth Proportional to 162,933.90, 224,858.03 and 91,318.54

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Solution

The fourth proportional to 162,933.90, 224,858.03 and 91,318.54 is: 126,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,933.90 : 224,858.03 = 91,318.54 : x
  2. Step 2: Convert to fraction form
    162,933.90/224,858.03 = 91,318.54/x
  3. Step 3: Cross multiply
    162,933.90x = 224,858.03 × 91,318.54
  4. Step 4: Simplify right side
    162,933.90x = 20,533,706,409.75
  5. Step 5: Solve for x
    x = 20,533,706,409.75/162,933.90
  6. Step 6: Final answer
    x = 126,024.77

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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.