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Finding the Fourth Proportional to 382,169.70, 573,181.65 and 115,938.90

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Solution

The fourth proportional to 382,169.70, 573,181.65 and 115,938.90 is: 173,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,169.70 : 573,181.65 = 115,938.90 : x
  2. Step 2: Convert to fraction form
    382,169.70/573,181.65 = 115,938.90/x
  3. Step 3: Cross multiply
    382,169.70x = 573,181.65 × 115,938.90
  4. Step 4: Simplify right side
    382,169.70x = 66,454,050,001.19
  5. Step 5: Solve for x
    x = 66,454,050,001.19/382,169.70
  6. Step 6: Final answer
    x = 173,886.23

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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.