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Finding the Fourth Proportional to 382,218.51, 573,298.47 and 115,980.42

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Solution

The fourth proportional to 382,218.51, 573,298.47 and 115,980.42 is: 173,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,218.51 : 573,298.47 = 115,980.42 : x
  2. Step 2: Convert to fraction form
    382,218.51/573,298.47 = 115,980.42/x
  3. Step 3: Cross multiply
    382,218.51x = 573,298.47 × 115,980.42
  4. Step 4: Simplify right side
    382,218.51x = 66,491,397,335.96
  5. Step 5: Solve for x
    x = 66,491,397,335.96/382,218.51
  6. Step 6: Final answer
    x = 173,961.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.