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Finding the Fourth Proportional to 382,006.57, 573,059.06 and 115,720.18

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Solution

The fourth proportional to 382,006.57, 573,059.06 and 115,720.18 is: 173,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,006.57 : 573,059.06 = 115,720.18 : x
  2. Step 2: Convert to fraction form
    382,006.57/573,059.06 = 115,720.18/x
  3. Step 3: Cross multiply
    382,006.57x = 573,059.06 × 115,720.18
  4. Step 4: Simplify right side
    382,006.57x = 66,314,497,573.83
  5. Step 5: Solve for x
    x = 66,314,497,573.83/382,006.57
  6. Step 6: Final answer
    x = 173,595.18

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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.