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Finding the Fourth Proportional to 161,287.93, 222,578.21 and 88,695.51

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Solution

The fourth proportional to 161,287.93, 222,578.21 and 88,695.51 is: 122,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,287.93 : 222,578.21 = 88,695.51 : x
  2. Step 2: Convert to fraction form
    161,287.93/222,578.21 = 88,695.51/x
  3. Step 3: Cross multiply
    161,287.93x = 222,578.21 × 88,695.51
  4. Step 4: Simplify right side
    161,287.93x = 19,741,686,959.68
  5. Step 5: Solve for x
    x = 19,741,686,959.68/161,287.93
  6. Step 6: Final answer
    x = 122,400.27

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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.