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Finding the Fourth Proportional to 163,029.60, 224,991.60 and 91,414.20

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Solution

The fourth proportional to 163,029.60, 224,991.60 and 91,414.20 is: 126,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,029.60 : 224,991.60 = 91,414.20 : x
  2. Step 2: Convert to fraction form
    163,029.60/224,991.60 = 91,414.20/x
  3. Step 3: Cross multiply
    163,029.60x = 224,991.60 × 91,414.20
  4. Step 4: Simplify right side
    163,029.60x = 20,567,427,120.72
  5. Step 5: Solve for x
    x = 20,567,427,120.72/163,029.60
  6. Step 6: Final answer
    x = 126,157.62

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1.5x scale

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.