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Finding the Fourth Proportional to 161,991.66, 223,403.15 and 101,568.90

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Solution

The fourth proportional to 161,991.66, 223,403.15 and 101,568.90 is: 140,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,991.66 : 223,403.15 = 101,568.90 : x
  2. Step 2: Convert to fraction form
    161,991.66/223,403.15 = 101,568.90/x
  3. Step 3: Cross multiply
    161,991.66x = 223,403.15 × 101,568.90
  4. Step 4: Simplify right side
    161,991.66x = 22,690,812,202.04
  5. Step 5: Solve for x
    x = 22,690,812,202.04/161,991.66
  6. Step 6: Final answer
    x = 140,073.95

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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.