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Finding the Fourth Proportional to 382,169.52, 573,335.83 and 129,441.16

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Solution

The fourth proportional to 382,169.52, 573,335.83 and 129,441.16 is: 194,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,169.52 : 573,335.83 = 129,441.16 : x
  2. Step 2: Convert to fraction form
    382,169.52/573,335.83 = 129,441.16/x
  3. Step 3: Cross multiply
    382,169.52x = 573,335.83 × 129,441.16
  4. Step 4: Simplify right side
    382,169.52x = 74,213,254,904.76
  5. Step 5: Solve for x
    x = 74,213,254,904.76/382,169.52
  6. Step 6: Final answer
    x = 194,189.36

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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.