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Finding the Fourth Proportional to 161,676.92, 223,120.92 and 90,056.84

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Solution

The fourth proportional to 161,676.92, 223,120.92 and 90,056.84 is: 124,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,676.92 : 223,120.92 = 90,056.84 : x
  2. Step 2: Convert to fraction form
    161,676.92/223,120.92 = 90,056.84/x
  3. Step 3: Cross multiply
    161,676.92x = 223,120.92 × 90,056.84
  4. Step 4: Simplify right side
    161,676.92x = 20,093,564,993.09
  5. Step 5: Solve for x
    x = 20,093,564,993.09/161,676.92
  6. Step 6: Final answer
    x = 124,282.21

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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.