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Finding the Fourth Proportional to 382,676.70, 574,098.10 and 116,430.30

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Solution

The fourth proportional to 382,676.70, 574,098.10 and 116,430.30 is: 174,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,676.70 : 574,098.10 = 116,430.30 : x
  2. Step 2: Convert to fraction form
    382,676.70/574,098.10 = 116,430.30/x
  3. Step 3: Cross multiply
    382,676.70x = 574,098.10 × 116,430.30
  4. Step 4: Simplify right side
    382,676.70x = 66,842,414,012.43
  5. Step 5: Solve for x
    x = 66,842,414,012.43/382,676.70
  6. Step 6: Final answer
    x = 174,670.72

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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.