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Finding the Fourth Proportional to 161,842.32, 223,331.04 and 90,226.32

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Solution

The fourth proportional to 161,842.32, 223,331.04 and 90,226.32 is: 124,505.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,842.32 : 223,331.04 = 90,226.32 : x
  2. Step 2: Convert to fraction form
    161,842.32/223,331.04 = 90,226.32/x
  3. Step 3: Cross multiply
    161,842.32x = 223,331.04 × 90,226.32
  4. Step 4: Simplify right side
    161,842.32x = 20,150,337,880.97
  5. Step 5: Solve for x
    x = 20,150,337,880.97/161,842.32
  6. Step 6: Final answer
    x = 124,505.99

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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.