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Finding the Fourth Proportional to 353,442.71, 530,213.31 and 113,563.84

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Solution

The fourth proportional to 353,442.71, 530,213.31 and 113,563.84 is: 170,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,442.71 : 530,213.31 = 113,563.84 : x
  2. Step 2: Convert to fraction form
    353,442.71/530,213.31 = 113,563.84/x
  3. Step 3: Cross multiply
    353,442.71x = 530,213.31 × 113,563.84
  4. Step 4: Simplify right side
    353,442.71x = 60,213,059,502.71
  5. Step 5: Solve for x
    x = 60,213,059,502.71/353,442.71
  6. Step 6: Final answer
    x = 170,361.58

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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.