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Finding the Fourth Proportional to 382,695.70, 574,126.60 and 116,449.30

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Solution

The fourth proportional to 382,695.70, 574,126.60 and 116,449.30 is: 174,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,695.70 : 574,126.60 = 116,449.30 : x
  2. Step 2: Convert to fraction form
    382,695.70/574,126.60 = 116,449.30/x
  3. Step 3: Cross multiply
    382,695.70x = 574,126.60 × 116,449.30
  4. Step 4: Simplify right side
    382,695.70x = 66,856,640,681.38
  5. Step 5: Solve for x
    x = 66,856,640,681.38/382,695.70
  6. Step 6: Final answer
    x = 174,699.22

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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.