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Finding the Fourth Proportional to 158,673.66, 218,983.80 and 87,067.62

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Solution

The fourth proportional to 158,673.66, 218,983.80 and 87,067.62 is: 120,161.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,673.66 : 218,983.80 = 87,067.62 : x
  2. Step 2: Convert to fraction form
    158,673.66/218,983.80 = 87,067.62/x
  3. Step 3: Cross multiply
    158,673.66x = 218,983.80 × 87,067.62
  4. Step 4: Simplify right side
    158,673.66x = 19,066,398,284.56
  5. Step 5: Solve for x
    x = 19,066,398,284.56/158,673.66
  6. Step 6: Final answer
    x = 120,161.08

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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.