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Finding the Fourth Proportional to 161,019.51, 222,213.86 and 89,399.53

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Solution

The fourth proportional to 161,019.51, 222,213.86 and 89,399.53 is: 123,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,019.51 : 222,213.86 = 89,399.53 : x
  2. Step 2: Convert to fraction form
    161,019.51/222,213.86 = 89,399.53/x
  3. Step 3: Cross multiply
    161,019.51x = 222,213.86 × 89,399.53
  4. Step 4: Simplify right side
    161,019.51x = 19,865,814,809.50
  5. Step 5: Solve for x
    x = 19,865,814,809.50/161,019.51
  6. Step 6: Final answer
    x = 123,375.21

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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.