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Finding the Fourth Proportional to 161,847.71, 223,349.88 and 90,226.19

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Solution

The fourth proportional to 161,847.71, 223,349.88 and 90,226.19 is: 124,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,847.71 : 223,349.88 = 90,226.19 : x
  2. Step 2: Convert to fraction form
    161,847.71/223,349.88 = 90,226.19/x
  3. Step 3: Cross multiply
    161,847.71x = 223,349.88 × 90,226.19
  4. Step 4: Simplify right side
    161,847.71x = 20,152,008,709.36
  5. Step 5: Solve for x
    x = 20,152,008,709.36/161,847.71
  6. Step 6: Final answer
    x = 124,512.16

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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.